Vista - Stable drivers

Self-built pc with the following config:
Gigabyte M590SLI-S5 mobo
2 GB Corsair DDR2 6400 dual-channel
Asus 8600 GT 512 MB GDDR3
AMD Athlon 64 X2 3800
Creative Audigy 2 ZS Gamer
Hauppauge HVR-1800 tv card
2 250 GB WD Sata HDs in RAID (5?) acting as one drive
Vista 64 Ultimate

Video card and tv-tuner card occupy both PCI-16 slots (not sure if this would cause a problem, but so far haven't noticed any)

Have had only one video crash since putting the video card in about 2 months ago, compared to my previous EVGA card I had which crashed at least once a week. Other hardware seems to be fairly stable. Creative hasn't updated their drivers in a year, would like some good drivers for that. Also, my Hauppauge card using WinTV6 only displays my satellite signal in black and white. It's been said it's a usb issue with Vista. Would like more optimized drivers for the video card also. If anybody has suggestions, thanks in advance.