Tortuga:
I have used most of the FoodSavers - and the one that has lasted the longest for me ( still use it -virtually daily) is an OLD one that holds a roll of film, and has a cutter blade - and that is it. I have had it for 10-11 years.
Have several friends using the GameSaver by FoodSaver. It can run on 12vdc and 120vac and I am told it has a more heavy duty pump.
The Cabela's CG-15, which is a version of the Weston 2300 is the Cadillac. I love it. It will suck the air out of a bag so well that it will collapse and crush a beer can in the bag! And - it will take 15'' wide bags - so if you want to pack a whole brisket, or large boston butt, etc...
The Weston/Cabela's is all stainless, and all the parts are readily available from several on-line vendors. BUT...it is approx. $450.