Well yesterday I scored an Alphaserver 2000 4/200 at the First Saturday Sale for $20. You can see some pics of it here. http://www.redrouteone.net/alpha
It has a single 190MHz CPU and is upgradeable to 2 CPUS. It has 128MB of RAM and is upgradeable to 1GB but to do that would require 64 16MB 72pin SIMMS. It has no drives in it and I am kind of disappointed in that. I forgot to check to see if it had in it when I was buying it, though I did literally buy it off of the back of a truck at 4am.
I plan on running OpenVMS on it, though I will load Windows NT 4.0 just for the hell of it.