I've been mining XPM on DigitalOcean for the last 16 hours (thanks to Vorksholk from Bitcointalk.org forums for the tip), generated 18 blocks with about 1500 PPS at a cost of $10/day. I've written my own step-by-step guide along with my personal tips on the Primecoin forums: http://www.ppcointalk.org/index.php?topic=336.0 I'm not great at ubuntu or command line so I stuck with the Ubuntu Desktop.