I just asked the company I do consulting for to order one for me. Added the hard disk (another couldn't hurt) and 2GB of memory. Totalled out at $700 for something that is about 4 times faster than my last box.
I've seen a couple around here. Just be careful about how tight you tighten screws. My only gripe.
-- [link|mailto:greg@gregfolkert.net|greg], [link|http://www.iwethey.org/ed_curry|REMEMBER ED CURRY!] @ iwethey Freedom is not FREE. Yeah, but 10s of Trillions of US Dollars?