Can anyone recommend a 64-bit server that supports hardware virtualization?

Can't seem to find anything with the AMD-V or Intel-VT processors on Ebay. I found ONE Intel server on Ebay but would like to look at a few more options. What I want to do is set up a small intranet like environment for testing/development purposes using Ubuntu Server and the XEN hypervisor and set up like 5 or 6 VM's. Maybe mess around a little with Ubuntu Enterprise Cloud.

In additional to which server I should buy, does anyone have any other suggestions so far as hardware requirements?

Most of the Intel Xeon processors would be suitable for this:
http://ark.intel.com/ProductCollection.aspx?familyID=594

Most (if not all) Opterons from AMD would support virtualization as well.

If you don't need a server CPU, there are plenty of desktop CPU's that support this technology as well.