I'm looking for suggestions for a cheap system (ATOM maybe?) that will Xen so that I can buy several of them and build a private cloud for trial purposes. The software will be Ubuntu Enterprise Cloud.
I'm not interested in performance since these systems are just to build a trial cloud that can be used to demonstrate cloud features, as well as for education. Once we decide to use a private cloud for real work, we will build it on workhorse servers and these cheap boxes will either remain for education or be repurposed, perhaps as DNS servers.
I'm open to build your own solutions as well as prebuilt boxes, but they absolutely MUST support Xen virtualisation, at least hypervirtualization, and also be cheap.