the xps is for sale, its pretty loaded, you can put sli whtvr u want in, same with the processor, ram, hdd's and optical drives.
spec of the xps:
Pentium 4 670 with Hyper Threading @ 3.8 GHz
2 GB Dual Channel DDR2 4200 (4x512MB)
nVidia Geforce 7800 GTX 256MB pci-e 16X Video Card
Maxtor 250GB SATA Hard Drive 16MB Cache
DVD Burner Drive
DVD / CDRW Drive
Creative Soudblaster Audigy 2 ZS Sound Card
TV Tuner Card
Windows XP Media Center 2005 License and Restore DVD
Dell USB Keyboard
Dell USB Optical Mouse
trying to sell it for $1000 if i can.