I probably could get 15 or 16k with a 2nd 6600GT, not sure whether to do that or get a 6800GT since it does beat 2 6600GTs in some benchmarks. I have the Newcastle core which i shouldnt have got since its a pain in the ass to OC, cant even hit 2.3 without problems.
Athlon 64 3500+ / Asus A8N-SLI Deluxe
1gb Corsair DC Twin-X (512x2) Pc3200 LL
2x Asus EN6600GT w/76.10 Forceware (It Helps)
Sony DVD RW DRU-710A / Toshiba 16x DVD-ROM
Thermaltake Shark Aluminum Case w/Asus 4 in 1 Cool Ice CPU Fan
Sound Blaster Audigy2 ZS
3DMark 2003 ~ 14682