One more vote for the Hornady cam-lock. Faster than the other collets, save the little forster doo-hickeys, but they don't come in 45 cal.
If you have a turret, or LNL inserts, they're as fast as a kinetic type, and less mess too. It might even be worth it to buy a lee hand press and leave the cam-lock puller set up in it. Some say they don't work well with lead bullets, but mine works fine on 45 colt 200 gr lead rnfp's.
Andy