Napster and IF06, please do not double post any more. You have a button under your name on the left side of your post that says "Edit," and you can use it on your own posts. Please use it.
Anyway, if you're going to go with an nVidia core (ie. 6XXX/7XXX GT/GTX/GT KO/Ultra), go with EVGA, or if you have to, XFX. EVGA is the best for nVidia chips.