Got a small vacuum sealer I don't use much which is up for sale. It's this model: http://www.lakeland.co.uk/13763/Seal-a-Meal-
They were £55 (see reference towards the bottom of this article: The secret to sous vide cookery - Telegraph ).
It's immaculate condition, works well but the only downside is that it is a bit slow - will vac and seal a few bags at a time but then needs to be allowed to cool before the next batch (this isn't a fault, it's supposed to do this). The bigger the bags and the longer the vacuum pump runs the more frequently it needs to be allowed to cool.
Looking for £25 posted.