Anyone have opinions on food vacuum sealers? Want to get started on sous vide cooking, and I think my meat would store in the freezer better vacuum sealed, but there are so many options out there, I am not sure what to go with. While I'd love a chamber sealer, I don't have the room, or, more importantly, the $700 plus to spend on it. Any recommendations, tips, etc. on the clamp style sealers?