I personnally would recommend the Corsair kit, but that's just me. Crucial and OCZ are quality as well, so it's a personal preference really. As for 8800GTS vs 8800GT. If you can find an 8800GTS G92 close to $250 then I would get that, but if you're buying an 8800GT, be sure to get one with an improved cooler, such as the Gainward versions.
EDIT: This is brilliant for the price: http://www.newegg.com/Product/Produc...82E16814127323
Doesn't always have to be by EVGA you know. And if it's for the step-ip program, I'm 99% sure that is only valid for 90 days.