We could get into a long discussion about what type of music has the best drummers, but I just want to point out that jazz drummers are able to contribute to their bands while using light sticks, or even brushes.

When rock'n'roll was getting started, the drum kit was usually one snare, one high-hat, and a small kick-drum. The monster kits we see now, being played with sticks that look like baseball bats, came about as a response to the guitar and bass players who were getting bigger amps.

Your champ is really all the guitar amp you are ever likely to need. The PA amp should be more than adequate for small clubs. Your drummer will need to make some adjustments.

First, he should change to a lighter gauge of stick. Then, he will need to adjust the tension on his drum heads to match the sticks. This may mean changing the heads to lighter, thinner, skins. He may well find that he prefers this new setup, because it will be much more responsive, without having to hit the drums like he's trying to kill a mastodon!

It will be something like the changes a guitar player goes through, in moving from an acoustic to an electric. A skilled touch, and finesse become very important. As John O'Carroll has pointed out, this will make him a better drummer.