OMG, Philip Seymour Hoffman would be perfect....... (think Owning Mahowny)
This would actually be a great movie.

p.s. This is the first time I heard about this loser's demise. I smelled a rat when I came across his posts in the UA forum. My intuition told me that he was a total fraud, but I guess he was "for real" and instead ran a real major league fraud. It's really sad that he was an inspiration to a lot of people on FT.