As far as routers go I have a Hatachi m12vc that has spun 2 bearings so far. Nice router but the problem lies in the bearings. I picked up a trim router from harbor frieght for 27.00 and a spare one that works fine.
I've been cutting lithos mainly and a 30deg v-bit with a 1/4"end mill work fine. ball nose is good but if you check the time to cut it does take a while longer. Whatever your happy with works. check out my cuts on the joes cnc completed work pieces. Here's one...
Chris.....Everyday is a Good day.....if you wake up breathing!
Joe's 2006, Mach3, Vectric software.