Credit scores are increasingly important to getting loans, and loans of course are usually necessary to purchase a house. Banks have grown more and more averse to bad loans, so they’re wanting better credit scores. And the higher your score, the lower your interest rates.
FICO scores of 760, up from 720, are now necessary to get the cheapest rates on conventional 30 year fixed mortgages, according to a 3 January 09 WSJ article. The article also said that the new FICO scoring model will be even more sensitive to on time payments. So, pay your bill on time, if you can.