I read up a lot on Acorn vs mach3 vs UCCNC etc. Feedback with Acorn was that it just worked...period. No caveats, not excuses, no extra drivers, no special circumstances, no ... "why is it doing that" type of thing I see with mach3 and other boards. Also, I just did not want to mess with older parallel port BS computer interfaces. I was not going to install windows 7.

I then bought the Avid pro mill machine kit and hooked it up with Acorn. **** just worked and has never missed a beat. Support has been good as well. I enjoy a modern computer as well.