Like Vaderpro said, That Leadtek 6600GT your looking at is a good card, other than that the eVGA is another good brand. Just to elaborate on what DJ-Chris said, on this board people seem to think most XFX cards come DOA. I've had a XFX 6600GT now for almost a year and all i can say is that the card is fantastic.
Humbucker - noise wise i'm not really sure, my XFX 6600GT was pretty quite with its stock fan.
INTEL PENTIUM 4 3.0 GHz
512kb L2 Cache S478/ Zalman 7000B-AlCu cooler
Antec Solution Series 3700AMB Case 350W
XFX GEFORCE 6800GS VF700-AlCu VGA cooler
1 GIG CORSAIR/1 GIG GEIL DDR400 PC3200
Benq Lightscribe 16x DVD ReWriter
SAMSUNG 1.44MB FLOPPY DRIVE
WESTERN DIGITAL 80GB 7200RPM 8MB CACHE HARD DRIVE
Philips 17\" MONITOR
LG 52X24X52 CD-RW
Logitech MX518 Optical Mouse
MICROSOFT WINDOWS XP HOME