this is what my wife and I are currently using.
FoodSaver V2244 Vacuum Sealer in Black-FSFSSL2244-P00 - The Home Depot
We wanted something inexpensive to try out and see if we liked it. So far we do. it will over heat and need to cool down if you try to vac u seal too many in a row. The only two times it has happened to us, was when we brought home 36 and then 40 fish to clean a store. The replacement bags are not too difficult to find in our area.