The ongoing saga - Is there anything we can do to stop this?

This makes the 4th (the 4th!) one of these I've received this week!  Is anyone else receiving these?

Found this one in my spam box sent a couple days ago:

Dear Sir/Madam,
  
Good day,I have some funds to invest overseas in real Estate and Hotel business management/ buying of stocks from a good growing companies  in  your country. if you are interested in this project,please do get  back to me for us to discuss.
  
Thanks.
Mallam Dako

Also in spam box:

FROM MUHAMED HASSAN.
AUDITING AND ACCOUNTING UNIT.
AFRICA DEVELOPMENT BANK(ADB)
OUAGADOUGOU BURKINA-FASO.
 
                                  
                                               (CONFIDENTIAL)
I AM MUHAMED HASSAN THE DIRECTOR IN CHARGE OF AUDITING AND ACCOUNTING SECTION OF AFRICA DEVELOPMENT BANK, (ADB) OUAGADOUGOU BURKINA-FASO IN WEST AFRICA WITH DUE RESPECT AND REGARD. I HAVE DECIDED TO CONTACT YOU ON A BUSINESS TRANSACTION THAT WILL BE VERY BENEFICIAL TO BOTH OF US AT THE END OF THE TRANSACTION.DURING OUR INVESTIGATION AND AUDITING IN THIS BANK, MY DEPARTMENT CAME A CROSS A VERY HUGE SUM OF MONEY BELONGING TO A DECEASED PERSON WHO DIED ON 26 DECEMBER 2003 IN A PLANE CRASH AND THE FUND HAS BEEN DORMANT IN HIS ACCOUNT WITH THIS BANK WITHOUT ANY CLAIM OF THE FUND IN OUR CUSTODY EITHER FROM HIS FAMILY OR RELATION BEFORE OUR DISCOVERY TO THIS DEVELOPMENT.
 
THE BANKING LAW AND GUIDELINE HERE STIPULATES THAT IF SUCH MONEY REMAINED UNCLAMED AFTER FOUR YEARS, THE MONEY WILL BE TRANSFERED INTO THE BANK TREASURY AS UNCLAIMED FUND.ALTHOUGH PERSONALLY, I KEEP THIS INFORMATION SECRET WITHIN MYSELF TO ENABLE THE WHOLE PLANS AND IDEA BE PROFITABLE AND SUCCESSFUL DURING THE TIME OF EXECUTION. THE SAID AMOUNT WAS U.S $10.5M (TEN MILLION FIVE HUNDRED UNITED STATES DOLLARS).MEANWHILE ALL THE WHOLE ARRANGEMENT TO PUT CLAIM OVER THIS FUND AS THE BONAFIDE NEXT OF KIN TO THE DECEASED, GET THE REQUIRED APPROVAL AND TRANSFER THIS MONEY TO A FOREIGN ACCOUNT HAS BEEN PUT IN PLACE AND DIRECTIVES AND NEEDED INFORMATION WILL BE RELAYED TO YOU AS SOON AS YOU INDICATE YOUR INTEREST AND WILLINGNESS TO ASSIST ME AND ALSO BENEFIT YOUR SELF TO THIS GREAT BUSINESS OPPORTUNITY.
 
IN FACT I COULD HAVE DONE THIS DEAL ALONE BUT BECAUSE OF MY POSITION IN THIS COUNTRY AS A CIVIL SERVANT(A BANKER),WE ARE NOT ALLOWED TO OPERATE A FOREIGN ACCOUNT AND WOULD EVENTUALLY RAISE AN EYE BROW ON MY SIDE DURING THE TIME OF TRANSFER BECAUSE I WORK IN THIS BANK. THIS IS THE ACTUAL REASON WHY IT WILL REQUIRE A SECOND PARTY OR FELLOW WHO WILL FORWARD CLAIMS AS THE NEXT OF KIN WITH AFFIDAVIT OF TRUST OF OATH TO THE BANK AND ALSO PRESENT A FOREIGN ACCOUNT WHERE HE WILL NEED THE MONEY TO BE RE-TRANSFERRED INTO ON HIS REQUEST AS IT MAY BE AFTER DUE VERIFICATION AND CLARIFICATION BY THE CORRESPONDENT BRANCH OF THE BANK WHERE THE WHOLE MONEY WILL BE REMITTED FROM TO YOUR OWN DESIGNATION BANK ACCOUNT.
 
I WILL NOT FAIL TO INFORM YOU THAT THIS TRANSACTION IS 100% RISK FREE. ON SMOOTH CONCLUSION OF THIS TRANSACTION, YOU WILL BE ENTITLED TO 40% OF THE TOTAL SUM AS GRATIFICATION, WHILE 5% WILL BE SET ASIDE TO TAKE CARE OF EXPENSES THAT  MAY ARISE DURING THE TIME OF TRANSFER AND ALSO TELEPHONE BILLS, WHILE 55% WILL BE FOR ME. PLEASE, YOU HAVE BEEN ADVICED TO KEEP "TOP SECRET" AS I AM STILL IN SERVICE AND INTEND TO RETIRE FROM SERVICE AFTER I CONCLUDE THIS DEAL WITH YOU. I WILL BE MONITORING THE WHOLE SITUATION HERE IN THIS BANK UNTIL YOU CONFIRM THE MONEY IN YOUR ACCOUNT AND ASK ME TO COME DOWN TO YOUR COUNTRY FOR SUBSEQUENT SHARING OF THE FUND ACCORDING TO PERCENTAGES PREVIOUSLY INDICATED AND FURTHER INVESTMENT, EITHER IN YOUR COUNTRY OR ANY COUNTRY YOU ADVICE US TO INVEST IN. ALL OTHER NECESSARY VITAL INFORMATION WILL BE SENT TO YOU WHEN I HEAR FROM YOU.
 
I LOOK FOWARD TO RECEIVE YOUR REPLY AS SOON AS YOU RECEIVE THIS EMAIL.
 
YOURS FAITHFULLY,
MR MUHAMED HASSAN.

This one is interesting -- Nederland who?; sent 8/28:

FROM: DAYZERS NEDERLAND ORGANIZATION:

DAYZERS NEDERLAND:
PALEISSTRAAT
5, 2514 JA,
THE HAGUE, THE NETHERLANDS.
Official Website:
http://www.dayzers/.
nl,

RESULT MONTH OF AUGUST SWEEPSTAKES PROGRAM:


OUR DEAR WINNER,

ON
BEHALF OF DAYZERS NEDERLAND ORGANIZATION IN COLLABORATION WITH OUR
GOODWILL PROMOTERS,BE NOTIFIED;YOU HAVE WON THE SUM OF (ONE MILLION
EURO) FROM DAYZERS LOTTERY AND GAMING CORPORATION.
THE WINNING TICKET
WAS SELECTED FROM A DATA BASE OF INTERNET E-MAIL USERS, FROM WHICH YOUR
E-MAIL ADDRESS CAME OUT AS THE WINNING COUPON.

These are your winning
informations:

TICKET NUMBER: DZNL 492 - 714 -
027 / 2006LUCKY NUMBER:
09, 22, 36, 61, 63, 79, 84
REFRENCE NUMBER: NUWL / DZNL / 48326MST
BATCH NUMBER: DTOW 1396 62U7A

WE THEREBY CONTACT YOU TO CLAIM YOUR
WINNING AMOUNT QUICKLY AS THIS IS A MONTHLY LOTTERY. FAILURE TO CLAIM
YOUR WIN WILL RESULT INTO THE REVERSION OF THE WINNING SUM TO OUR
FOLLOWING MONTH LOTTERY. (CLAIMS DEADLINE, 14TH OF SEPTEMBER, 2007).
PLEASE CONTACT OUR APPROVED CLAIM DEPARTMENT FOR
YOUR REGION WITH YOUR
WINNING NUMBER.

BE INFORMED, DUE TO THE MIXUP OF CERTAIN NAMES,YOU ARE
ADVISED TO KEEP YOUR WINNING INFORMATION CONFIDENTIAL UNTIL YOUR CLAIM
HAS BEEN PROCESSED AND YOUR MONEY PAID TO YOU.

CONTACT DAYZERS CLAIMS
DEPARTMENT FOR YOUR IDENTITY VERIFICATION,WHILE QUOTING: (1). YOUR FULL
NAME(S) AND NATIONALITY ;(2).YOUR WINNING INFORMATION; (3).TELEPHONE
NUMBER .

NOTE: THESE INFORMATION SENT TO DAYZERS CLAIMS DEPARTMENT
UNDERLISTED EMAIL ADDRESS: dyzdpt@aim.com

DAYZERS ONLINE LOTTERY.
DR.
JOHAN GALLAGHER.
DAYZERS CLAIMS DEPARTMENT.
TEL: +31-620-889-086
E-
MAIL: dyzdpt@aim.com,

REGARDS,

MRS. MAUREEN VAN HOUDT.
DIRECTOR OF
DAYZERS LOTTERY ONLINE.

Any takers?  Who do you report these things to?  How do we get them to stop?