Uhh, aren't Pentium 4 and Core 2 Quads completely different processors? Pentium 4 being single core and a bit old, like at least 6 years old.

Can I make the assumption that you told your supplier the purpose for the machine? I'm surprised all these rigs have only 2GB RAM.

Also the graphic card could be better, the 1GB RAM sounds nice but the truth is that card has a low bit rate, aim for 256 minimum.

I don't know if this is exactly how your supplier listed the information but in rig 2, I found it strange that the motherboard info is listed as if it were two separate components. Anyways, option 3 looks the best but if you were thinking of SLI you can forget it with that board. I don't even think the motherboard in option 2 supports the graphic card.

Chirone, you're right the INTEL WX58BP MOTHERBOARD is for Xeons, the i7 listed is of the same socket type but I dunno how that will work out. To be honest, I would seek different options.