Re: Western MA
you have a very good resource very close. The western Mass fly fisherman meet at the Chicopee elks club 3rd Monday of the month. Great group of guys and very freindly.
don't over look some other rivers close to you yes the Deerfield maybe the best river in Mass but will also be crowde at times and you will have to time it just right for the releases from the dam. there are a few good smaller river fairly close to you. Quabog just west of you is good early year as is the Chicopee also a little farther west the Quinebaug near sturbridge can be good at times. If you don't mind paying out of state license fee there a lot of good waters just over the line in Connecitcut.
my first trip would be to the WMFF they are good guys.