Attached Link: http://www.shuttleonline.com

I'm currently lookung into the Shuttle SS51G box. I'm going to put in a pretty fast Pentium IV in it and fill it up with RAM. Total cost is going to be around $1,200 US and it takes up very little space. Then in a few years I'll do the same thing with whatever hardware is current and do network rendering (at least Bryce supports it now).