+1. . . goto your local bow shop and get fitted correctly. It may cost you $25-30 more to buy from a local guy than over the 'net, but the bow will fit you correctly, and you'll be supporting the local guy and get service if somethings not 100%
If you're on a budget and need to save the $25-30 buy purchasing from the internet, may I suggest buying a new "last years" bow. The Big Bow companies all come out with "new stuff" every year and you can score a smoking deal on last years stuff (as long as your not the "latest and greatest guy")
I'm not sure who's near Tewksbury (there use to be a place in Burlington, I don't know if their still there). But there are 5-6 great places withing a 30 minute drive