Hi, I'm starting school soon and I'm looking for a backpack big enough to fit a 17" laptop (yes, I know it's big but it's the only one I got) and couple books and perhaps an iPad as well. Basically, I need a sturdy backpack that's big enough to carry all my gadgets and books, yet still looks good and comfortable so my back doesn't give out. Also, if the backpack has a portable battery pack attached, it would be awesome. I use my laptop a lot and sometimes, I can't find a place to recharge. Anyone recommend any good backpacks or current ones they use?