I am thinking about setting up one but also to use as a desktop/workstation. I have an existing system and some of these parts will move into the new machine. I plan to get the following: Shuttle Spacewalker SB83G5M and Pentium 4 540J 3.2 HT chip. I will reuse ATI Radeon 9800 Pro AIW, 72GB Raptor, 300GB SATA HD, Pioneer 109. For the OS, if I install MSE 2005, are there restrictions on what I can do i.e. that Windows XP Professional has? If so, would a virtual image work? I.e. have Windows XP as my host system and MSE 2005 as my virtual system? I would like to know if someone has a similar setup i.e. the shuttle in question. I've heard it maybe a bit noisy and may produce some additional heat with the 9800. Thanks in advance.