This article was a good read...he lays out how he ended up in a big house and foreclosure. The sad part is that I have many friends like his wife, who just spend with disregard for where the money to cover the payments will come from.
http://www.nytimes.com/2009/05/17/magazine/17foreclosure-t.html?pagewanted=1
http://www.nytimes.com/2009/05/17/magazine/17foreclosure-t.html?pagewanted=1