I've been lurking for some time (well over a year). I live in BOS and commute to work in SE Asia, usually on Delta. The last two years I've managed between 100,000 and 130,000 miles, annually. Add to that another 10,000-20,000 in personal travel, usually on DL or other SkyTeam airlines (only since I hit PM with DL).
The forums have already been really useful, and hopefully I can pick up some more tricks to get the most benefit from my traveling.