First, please size down your signature to 5 lines maximum please.
Second, if you want to play games with enough OOMPH! to them, get a Athlon 64. Semprons are really for budget users or casual users who don't game but just need something to help get things done.
There is a Athlon 64 3000+ that is Socket 754 and it has the Venice core, for $110. It sounds weird, but it's on Newegg.com.