I wouldn't get your main player scalloped unless you're sure you like it. I can play scallops, but I don't own a scalloped guitar at the moment. (That will probably change soon, however.)
Believe it or not, our drummer (who also plays guitar) got into the idea, and he's been doing great work - he does "progressive" scalloping, where they're shallower on the low frets/bass side and get get deeper as you go up/across the neck. It's a pretty cool concept:
High E side:
http://i37.photobucket.com/albums/e51/goetzja/2006_0207Guitars0090.jpg
Low B side: (This happens to be a seven string)
http://i37.photobucket.com/albums/e51/goetzja/2006_0207Guitars0088.jpg
Hmm. No image posting?
Follow the links, then.