We bought the Foodsaver FM2100 at Costco a year or so ago. Don't know if Costco still has it. We bought this one because of it's compact low profile so it stores easily in our motorhome. We like it alot. I think it does what you need. Check it out on Foodsaver website, watch the videos and read some reviews.
Our only problem is incomplete sealing when there is too much moisture in the food. I read a reply from Foodsaver to one of the reviews:
"For best results be sure to pre-freeze any food with moisture, such as fresh meats and seafood"
So we did this with some fresh fish and it definitely helps!