If I am searching for homes in the price range of $250,000 to $300,000 I will see your home with either price and your home would be probably one of the nicer homes in that price range.  If I am searching for homes in the $300,000 to $400,000 range I will only see your home if it is priced at $300,000 and it would be the most reasonable home in that price range.   If you price the home at $299,900 you have cut out a whole group of home searchers.   We are selling homes not soup!  JMO

I think the $299 price is better. To comment on Wayne's perspctive, he says that at $300, it will also fall in the search for the people looking for $300 to $400. My experience has been that if someone is looking in the 300 to 400 range, that they are probably not going to buy one for $300.

I have never understood the $X99,XXX rationale. It is an attempt to copy consumer store retail pricing, where supposedly "$2.95" is perceived by consumers as "only two dollars!" So it's an attempt to make the listing at $299,000 be perceived as if "It's only $200,000!" That's frankly ludicrous--it simply assumes buyers are stupid. 

I would price it at 300k; depending on what competition you have.  I agree with the comment that homes priced at xx9,999 or xx9,995 is just a gimmick that buyers don't really go for.

Good luck.

Price the house for what the value is not what you think someone searching the MLS will look for.  I search in even numbers and your house will fall in the range.  However if you don't have loads of good pictures there is a good chance that my buyers and I are going to pass it by no matter what the price!