I got a new backpack for SxSW and my upcoming NYC trip in April. I absolutely love it. There’s enough room for 2 camera bodies, 5 lenses, a flash, my laptop, various accessories, and straps on the bottom of the bag for a tripod. This is perfect as a day pack, for hiking and as a full travel kit. I would absolutely recommend this pack. Get it here.
Edit: If I pack it full it would be uncomfortably heavy - but that’s more my problem than the bag’s, wouldn’t you say? All in all, though there are 8 pockets and 2 pouches on the side (for like… water bottles, I guess).