Desktop sized pcb engraver. There aren't many of these around. Most folk seem to go in for the big joe/jgro sized mdf jobbies. I'm currently looking at the design Tom has on instructables.com for an easy desktop cnc machine. Mostly be for pcb and milling plasticard for models. It'll be my first foray into cnc so it seems suitably small and cheap enough to dip my toe in and experiment.