I actually just recently picked up the drums. My brother got a set about 5 years ago and gave up on them after a year. I put them in my room about a month ago and have been teaching myself. I wanted to start not only because it would be cool to learn another instrument, but I wanted to improve my coordination and rythm. A drummers job is to keep the time, so that will help a LOT in guitar. As far as coordination, since you need to be doing a lot of different things at once, your mind get used to thinking differently and you get a wider range of "abilities" I would say.