Summary: We've moved away from building servers from scratch, and going with HP proliant systems. This server is turning out to be the sweet spot between cost and performance. Quad Xeon is perfect for an office of 25 users or less.
Pros: Compact, quiet, nice front cover hinges or removes completely, takes all kinds of RAM, fast.
Cons: As another said, it's got a long boot up time. The post process is like watching a dozen previews at the theater. It's entertaining and informative, but slow. I used the buy the drive trays from that jungle store, but now Newegg carries them. Look for item 9SIA1KT0ER3515