I was wondering if there are any reasonably price (less that $150) backpacks out there that would allow me to carry both my camera and my school work at once. I'd really like to be able to carry my gear with me when I'm on campus, but I don't want to cary a separate bag, nor do I just want to throw my gear in my normal pack for fear of it getting damaged (when I set down the pack, if it tips over, etc). I was looking at getting the Burton Zoom or Dakine Sequence, but neither look like they have much space for anything but a camera. An added bonus of these packs is that they have ski straps so I could carry my skis more easily in the back-country. Anyone have opinions on these or other packs that fit the criteria?
I don't have a lot of gear and I don't plan on every carrying a whole lot to school. I'd simply like space for my 70-200 f/4L, Sigma 17-70, Flash and maybe my Nifty or Lensbaby (both are small/cheap, can go in a random pocket). I'll eventually have a 430EX also, but that's about the extent of what I'm going to lug around (yeah I know its a lot, probably wouldn't carry it every day.)

