How much home can you afford?  This link will allow you to insert your current income and debts to figure out how much home you can afford:

http://www.ginniemae.gov/2_prequal/intro_questions.asp?Section=YPTH

Would you like an estimate of payments?  This link will give you a basic figure for down payment, closing costs, and monthly payments:

http://www.ginniemae.gov/2_prequal/le_intro_questions.asp?subTitle=YPTH