lowest:
Core 2 Duo E4300 1.8 LGA775			$170
Opteron 1210 1.8 AM2				$150

Medium:
Xeon 3050 2.13 LGA775				$235
Opteron 1214 2.2 AM2				$246

Common:
(i) Asus P5M2-M					$225
(a) Asus M2N-LR					$215

Antec SLK3000 B stock				$25
Ram x2
Seagate ES x2

High:
Xeon 5130 S 771					$353
Opteron 2216 2.4 F				$380
(i) Asus DSBF-DE				$330
(a) Asus KFN4-DRE				$315
3Ware 9650SE-4LPML				$350
Seagate ES x4
Antec CS600 B-stock				$40

Common:
Enermax EG701AX-VE 600W	EPS12V			$120

Options:
3Ware 9650SE-2LP				$200
3Ware 9650SE-4LPML				$350
3Ware 9650SE-8LPML				$550
Seagate ES ST3250620NS				$83
Seagate ES ST3400620NS				$140
Seagate ES ST3500630NS				$180
Seagate ES ST3750640NS				$310
Intel Pro/1000 PT EXPI9300PTBLK (single port)	$35
Intel Pro/1000 PT EXPI9402PTBLK (dual port)	$150
DDR2:
Crucial 512M Non-ECC DDR2-667 CT6464AA667	$34
Crucial 1GB Non-ECC DDR2-667 CT12864AA667	$60
Crucial 2GB Non-ECC DDR2-667 CT25664AA667	$242
Crucial 1GB ECC DDR2-667 CT12872AB667S		$118
Crucial 2GB ECC DDR2-667 CT25672AB667		$320
FB-DIMM:
Crucial 1GB FB-DIMM ECC DDR2-667 CT12872AF667	$125
Crucial 2GB FB-DIMM ECC DDR2-667 CT25672AF667	$365
Crucial 4GB FB-DIMM ECC DDR2-667 CT51272AF667	$1350