MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I built a printer as well, I am using Ramps, Abusemark Display Driver, Repetier and Creation Workshop in an Windows VM on my Mac. First dry run works!
Details in german, a lot of pics:http://forums.reprap.org/read.php?336,716806