Best of luck and if I can help you with your home search, please don't hesitate to contact me or any of the super agents that post here on Trulia.
http://www.federalhousingtaxcredit.com/2009/faq.php This is the Federal program
http://www.ci.miramar.fl.us/econ/docs/CityGrants.pdf This is the City's program
Good luck! I hope this helps!