There are a bunch of community designs out there if you're worried about the "cloud" or prefer the DIY approach. Certainly won't have a few of the cool features with the automatic part alignment and stuff that this one is offering though.
http://www.buildlog.net/blog/2011/02/buildlog-net-2-x-laser/
http://openbuilds.org/builds/openbuilds-freeburn-2-mini-v-slot-co2-laser-40-50w.1657/