One possibility I didn't see mentioned was a used, medium ALICE pack. You can get them with the straps and belt for about 25-40 bucks, in better than good shape, on eBay fairly often. It isn't a great pack, but it is good enough for something that will be in the trunk all the time. That should hold most eveything you'll need, and it is definantly in your price range. <img src="/images/graemlins/smile.gif" alt="" />