You can purchase the ASUS PC-DL Deluxe with 2 Xeon 2.8ghz chips for about
$800, and it's a good fast board.
PC-DL Deluxe (Dual Xeon) $200
Xeon 2.8ghz 1m/533 $300 each
Tyan Tiger K8W (Dual Opteron) $200
Opteron 240 (1.4ghz) Server CPU $241
There have been many reports of high-failure rates of Dual Opteron based
workstations (just search for "Motherboard Dual Opteron" on google).
I've got about 30 of the ASUS PC-DL systems running in the field as web
and SQL servers and have not had a single failure from them. They don't
require the dual channel memory and have served me well, I'm considering
making them my standard workstation motherboard too.
It also depends on which Opteron motherboard you go with as well. I
have been very happy with my MSI K8t Master2 FAR but had numerous
issues with a Tiger K8w. Memory compatibility is not as flexible from
what i have seen with Opterons though if you stick with Registered ECC
DDR chips with Samsung or Infineon labels you are okay. If you wish
to go the Opteron route, look at some of the new NForce 4 boards
coming out for top performance.
FYI. Dual Opteron 240's or 242's will spank those 2.8 xeons in
practically every benchmark you throw at them. The on-die memory
controller in AMD64 chips is very nice
My Specs:
MSi K8T Master2 Far
4x512 PC2700 Infineon DDR REG ECC Memory
1 XFX Geforce 6600GT Video
Soundblaster Audigy2 ZS
2 Opteron 242 processors
2x80 WD SATA HD
1x300 Maxtor IDE HD
Liteon 52x CDrw/DVD Combo drive
Liteon DualLayer DVD +/-RW Drive
Ultra 500watt Modular PSU
4x80 Antec Blue Case Fans