Soon after I purchased my DSLR I decided I needed a backpack instead of a regular SLR pouch. Since I do alot of hiking I needed something to carry my 300D, along with two other lenses, a P&S digital camera, a camcorder, cokin filter system, external flash unit, and a tripod, plus all the accessories that one needs to carry while hiking such as extra batteries, a knife, compass, camera manuals, extra mini-DV tapes, extra memory, first-aid kit, trail maps, water bottle, etc.
This little backpack has room for all that and more. Beside the main compartment, it has two large pockets on the front, two small pockets on the sides, and two zippered compartments inside the main compartment. There are also straps on both sides for a tripod or whatever you want to put there. A drawback here is that there is just one strap near the top, not one on the bottom AND top. So the bottom of your tripod just kind of dangles there instead of being secured with two straps.
All in all, I'd say for the price, it cant be beat. Not even close.