I recently purchased and setup a TS3650. Other than small issues moving it around my garage with the herculift I love it! The online manual is much better than the boxed version.
Anyway, I want now to get a dust collection system and am comparing the Delta AP400 ($169) vs the Jet 708640 ($200 incl rebate). Any reason not to go with the Delta? I figure to connect 1-2 machines at a time.