Need advice on a photo bag.

Hi everyone.

I would appreciate any advice on choosing a photo bag for my specific need. I go backpacking often, and carry my camera/lens, plus another lens in a camera bag whose strap goes around my neck. That setup is not very comfortable at all, and would like to get something better. I was thinking that maybe there is a waist pack that can hold my gear, whose strap will not interfere with the waist belt of my backpack.

Here is what I would like the bag to hold: Canon XTi with Canon 10-22, a separate Canon 28-135 lens, spare memory cards, batteries, and a rocket blower.
I would appreciate any advice. Thank you.

Why don't you just pack it in the top of your backpack? Thats all I do. Tripod is on the side.

I was thinking that maybe there is a waist pack that can hold my gear, whose strap will not interfere with the waist belt of my backpack.

The LowePro Orion Mini would work when the bag is faced forward. Looks like it might be awkward and uncomfortable in that manner, though.

A modular system like a Think Tank Skin Chimp Cage Pop Down for the camera and accessories, and the Skin 50 to hold the other lens would work.
They're unpadded for less bulk and will easily attach to your current backpack belt.

Thanks for your input guys. I decided to go to Lowepro Inverse 100 AW. It's in the mail.