INFO ON SYSTEM SO FAR

AMD Athlon™64 X2/ Athlon™64 socket AM2 platform
Supports high performance Dual Channel DDR2 800 memory
NVIDIA SLI Multi-GPU function for extreme graphics performance
Integrated NVIDIA SATA 3Gb/s with RAID function
Optimized Gigabit LAN connection
Enhances security with NVIDIA TCP/IP Acceleration technology
Integrated T.I. IEEE1394 FireWire interface
Integrated high quality 8-channel AC'97 audio
2X160gig SATA HDD's from WD 16mg cache each
AMD Athlon64 X2 3800+
Thermaltake TMG A2 CPU COOLING Fan?
Both HDD's have Antec HDD heatsink&2fans on each HDD.
Round IDE Thermaltake Cable for FDD and Both IDE CD/DVD Drives
Aopen 18XDVD-RW+RW/CDROM

I had built this to sell and the person wanted paymnts. So now I need to FINISH and sell it, but I still need a good graphics CARD or two.

My QUESTION is I have two PCIe slots just for SLI. What WOULD be effecient and preform well and taking into the fact that it is built2sell. Is it fiesable to spend about 85.00 per card and go with two. Or just spend 200.00 on one card..Since the computer is built to sell, not sure on the best combo. I still need to buy and load OS, one CDRW/DVD-ROM and a KeyBoardMouse.

GIGABYTE GA-M55SLI-S4. REV.2.0
Any help on the video card or cards, XP-Media-Pro for OS, all help appriciated..
If you're building to sell, your audience must be less than demanding, if they'll take an Athlon X2 3800+ instead of Intel's latest offerings.
Always go for one higher performance card rather than two lower performance cards.
Why? Whilst it may look good (hey, this has TWO graphics cards!) anyone with a clue will realise that having one card that performs better than or equal to the SLI combo is better, because you can still SLI that one card later, whereas with the SLI cards you'd have to chuck them both out and buy a new card.
Does that help?Not worried about selling it with AMD CPU, alot of people dont know what they even have for a processor...Oh if they knew, love the QX6800 chips..

Thanks for the help