and I bought one of these units when they first came out the other year. The biggest problem I've found with them is that a majority of the bags I used lost their vacuum after anywhere from an hour to a couple weeks.
If you can't afford the hundred bucks for a Foodsaver with jar attachment, you could always buy the jar attachment (around $8) and a harbor freight brake bleeder and vacuum pump kit ($25) and hook the jar attachment up to the hand squeeze vacuum pump and manually seal the jars.
http://www.harborfreight.com/brake-bleeder-and-vacuum-pump-kit-92474.html
If you can't afford the hundred bucks for a Foodsaver with jar attachment, you could always buy the jar attachment (around $8) and a harbor freight brake bleeder and vacuum pump kit ($25) and hook the jar attachment up to the hand squeeze vacuum pump and manually seal the jars.
http://www.harborfreight.com/brake-bleeder-and-vacuum-pump-kit-92474.html