WhiteBox - Asus P5E-VM DO & Adaptec 3405
Asus P5E-VM DO + built-in NIC, please note to disable VT-d on motherboard BIOS.
Intel E7500 Dual Core
8GB RAM (4 x 2GB)
Adaptec 3405 PCIe SAS/RAID Card
Intel 1000/MT PCI (and not PCIe or PCIx)
Western Digital Caviar 1TB Black SATA Drive (2x as RAID 1 config)
iSCSI target : Thecus N5200PRO (100Gb iSCSI target for ISO and templates)
Performance from the Thecus is quite amazing, I have been using it already for 2 years. Specs 5x 750GB Seagate SATA drives configured as RAID 6.