I use a Seal 210M press; no way would I use cold adhesive methods because their "archival" properties are unproven (think of the "protective" spray that degrades prints) and their track record of adhesion hasn't been very good. I got my press inexpensively when the local schools moved away from mounting/laminating to computer-based presentations etc.

As for overmats, I've never managed to summon up enough patience to learn how to do it correctly so I buy precut mats and enjoy having all my fingers present.