motherboard - http://www.tyan.com/products/html/thunderk8we.html - $550

Processor - http://www.monarchcomputer.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=M&Product_Code=120191 $825 x2

RAM - http://www.monarchcomputer.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=M&Product_Code=140258 $569 x4

GPU - http://www.monarchcomputer.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=M&Product_Code=190457 $368 x2

Drives - http://www.monarchcomputer.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=M&Product_Code=150034 $210 x4

http://www.monarchcomputer.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=M&Product_Code=600312 $535

http://www.newegg.com/app/ViewProductDesc.asp?description=27-131-338&depa=1 $124 x2

http://www.newegg.com/app/ViewProductDesc.asp?description=27-106-233&depa=1 $67 x2

Monitor - http://www.newegg.com/app/viewproductdesc.asp?DEPA=0&description=24-116-234&CMP=OTC-pr1c3watch&ATT=Monitors $575

Sound Card - http://www.newegg.com/app/ViewProductDesc.asp?description=29-102-181&depa=0 $286

Total - $7800

The case will have to be modded, since it's probably impossible, or next to impossible, to find a case that holds a 12"x13" motherboard, a 6800gt video card, 6x 3.5" harddrives and 1x 3.5" floppy drive, and 4x 5.25" CD and DVD drives, and still has enough air flow to keep 2x high end video cards, 2x high end processors, a 2ghz HTT chip, 8 memory dimms, and all 11 drives cool without overheating.

The processors could be the new dual core opterons coming out this year, if you really need the 4 cores, and I don't think they'll be 2.4ghz or faster, probably 2.2 or less, and still cost the same. With all that's in this system, I don't think that 200 or 400mhz is going to make a huge difference. The 4 cores might help with some physics or AI more than a faster processor would. The opteron 252 and 852 processors are the first opterons to use the 2000mhz Hyper Transport and Dual Channel memory. I'd guess that the dual cores after those would also use the 2000mhz HTT and Dual Channel memory controller.

The SCSI drive is for System Cache, set in Windows. 32bit windows XP would only allow for 4GB of RAM and Cache total, so Windows XP x64 would have to be put on the system. The drive adds another 73GB to the Cache for whatever you would need the extra cache for. The drive would also have a 320MBps memory transfer rate, and since the RAM is dual channel, the RAM would transfer at 6400mbps and the drive would transfer at 3200mbps. Since the system has 8GB of memory anway, the SCSI harddrive is optional.

The monitor has a 2048x1536 max res. which is the max. that the video cards can get anyway.

Adding a PPU would definetly benefit, especially if it's going to be as good as it's hyped up to be. And if it's not, any reason for not having could be used against having the sound card.

The DVD and CD drives were the fastest I could find. The DVD drives weren't as fast with CD read and write as normal CD drives would be.

This PCs only downfall is that with 2 cores at 5.2ghz, or 4cores at almost 5ghz, and the fact that GPUs get so much more powerful when each new generation comes, you'll have to upgrade the video cards about 3 or so years. 3 years at least, but you could get away with 5 using SLI. Instead of using 2 6800GTs, you could use 2 of the new 6800 ultras with 512MB of RAM, but 512MB should be more than enough for a while with maxed settings and max. AA and AFF at 2048x1526 res., so why SLI 2 of those for a total of 1GB of video RAM with this generation of video cards?(and yes, it is 1GB total, because split frame rendering stores the lower half of the screen on one card, and the top half on the other. And you would use split frame rendering for a game that has larger textures, like Doom3) The total storage is 1.2TB, so you won't have to upgrade anytime soon. The RAM is 8GB, unless you get the SCSI drive, then it would be over 80GB, so you shouldn't have to upgrade that for a long time.

The only advantage this PC would have over a cheaper PC is the multitasking and freakishly high framerates. The ECC and Registers in the memory also provide more stability, and the large cache helps with whatever you'd need a large cache for.