marlon & enhz, thanks for your help! I had searched the forums and found out that the order in which you select the objects is very important when doing booleans. Still, they're strange.

One more question, I think. I've made the body of the guitar out of a polygon cube, but I'm having a hard time getting the shape correct, I keep using cut faces tool to get more vertices to play with. Should I start over and make it out nurbs, so I can easily add isoparms? Or should I use CV curve tool, outline the shape and bevel plus?

Also, is stretching a cilinder the best way to make strings?

Oh and enhz, you shouldn't have given up guitar!