It seems like the only thing anyone will confirm about the Down Payment Assistance program (the ones most used with FHA purchase loans) is that they are not allowed after October 1. 

Many lenders are requiring home buyers using DPA money to be locked by this week's end, a few will confirm that they will allow DPA till the cut-off as long as the loan is approved and in underwriting with an FHA case number assigned to a property.  *If you are in this pool it's going to be very crowded.*  Check if you have a DPA company bringing funds to close if they have a deadline that runs ahead of the ruling.  It was rumored that Nehemiah wouldn't send funds to close past September 15th 2008, but I can't find anything to support that on their website.  http://www.getdownpayment.com/

For the Salt Lake City area, the tax credit offered to 1st time home buyers is not allowed if your buyer is using a city grant for down payment. 

In Forbes.com: "In Depth: America's Recession-Proof Cities" Salt Lake City is in the top 10.  Something you might like to have to show potenial buyers. 

http://www.forbes.com/2008/03/25/suburbs-quality-lifestyle-forbeslife-cx_mw_0326realestate_slide_17.html?thisSpeed=15000