http://www.ncix.com/products/index.p...A&promoid=1058 - 9400GT, $53 after MIR.
http://www.ncix.com/products/index.p...9&promoid=1058 - Radeon 4830, $125 after MIR. Not sure if this is a truly more capable card or not, but it is newer architecture I think.
8300GS probably around 20$, that's about right I guess.