Go out and buy yourself a pair of monstertruck or racing event headphones. Ear protection for shooting will work too. Take an extra amp to use as a monitor, and pull it as close to you as possible when you guys are playing. You'll be able to hear what's going on, and you'll still be able to somewhat hear yourself play, but the beauty is that your ears will be protected. You may look goofy, but in reality, the look of working ears in fifty years time looks very cool. Another option is "in-ear" monitors. But you'd have to purchase a very expensive system for that. Besides, if you don't keep the volume low with the "in-ears" you end up doing the same kind of damage. Remember, you want to keep your hearing as accurate as possible, being a drummer and all...
Personally, I don't use ear protection because they make my ears itch. Although, the music I'm involved with really isn't all that loud...