I,m just worried, I work in a large IT dept looking after Servers. Our Dell 2850s get hammered with disk I/O. Although I will not be using my VMs at intensive. One of them has 4GB and is a dedicated mail server. I want to be able to run around 4 MS Virtual PCs on my PC with no problem. And still be able to use the O/S and play games. I can order Dell PCs at Education prices so that is one reason why I am looking to get the best for my money. My current pc with P4 3.2ghz 1GB ram cant handle 2VMs and the Vista host O/S. --------------------------------------------------------------------------------------------------------------------------------- This is the machine I am looking to buy but 8GB is the MAX amount of RAM it can handle on the motherboard. PROCESSOR Intel® Core™2 Quad Q9550 (2.83GHz, 1333MHz FSB, 12MB L2 Cache, Quad Core) 525W OPERATING SYSTEM (English) genuine Windows Vista® Ultimate x64 SP1 WITH Media TOWER/BASE ORIENTATION Vertical Chassis Orientation (Minitower, W: 170,2 x H: 447.3 x D: 468.4 mm) MEMORY 8GB (4 x 2.0GB DIMM) 800MHZ ECC Dual Channel Memory (requires 64-bit O/S) GRAPHICS CARD 512MB PCIe x16 nVidia Quadro FX 1700 (MRGA14L), Dual Monitor DVI or VGA Graphics Card HARD DRIVE 146G,(15,000rpm) SAS Hard Drive 2ND HARD DRIVE Additional - 146G,(15,000rpm) SAS 2 Hard Drive OPTICAL DRIVE 16X DVD+/-RW Here is the second configuration I am looking at that should hopefully last longer. PROCESSOR Intel Xeon E5440 (2.83GHz,1333FSB,2x6MB,Quad Core) OPERATING SYSTEM (English) genuine Windows Vista® Ultimate x64 SP1 WITH Media MEMORY 16GB DDR2 667 Quad Channel FBD Memory (8x2GB) GRAPHICS CARD 512MB PCIe x16 nVidia Quadro FX 1700 (MRGA14L), Dual Monitor DVI or VGA Graphics Card HARD DRIVE 146G,(15,000rpm) SAS Hard Drive OPTICAL DRIVE 16X DVD+/-RW + 16X DVD-ROM FLOPPY/MEDIA DRIVES No Floppy Drive