I bought mine from here you can't really go wrong.I had a M65 I wore all the time when I was in college (a long time ago!). This jacket is long gone but this thread has had me thinking of getting a new one. Who makes a good, new M65 that'll fit a middle-aged fat man?
http://shop.vtarmynavy.com/mobile/m-65-field-jackets-c288.aspx