Hey guys, I recently bought a Lowepro CompuDaypack because I needed a backpack to carry my 17" MacbookPro and my 50D + other gear, eventually. The Daypack holds my laptop OK, but the camera compartment is pretty small. Also, it isn't easily accessible for those "quick" shots. What would you recommend for a large laptop + ample space for a camera and gear, and easily accessible? I've been looking at the Lowepro Computrekker series, as long as the Vertex and Fastpacks. Something preferably as compact as possible would be great, for days I don't want to carry the laptop around. I was thinking of getting a small camera bag, since I already have a laptop backpack, but I hate the idea of having to carry around 2 bags if I wanted both with me. I'm planning on getting a Speedlite 580EX II. Would you recommend a diffuser (Gary Fong) or a "ring flash" type adapter, like the Orbis? Going to use it mainly for general use, maybe some indoor parties. Mostly portraits. I'm planning on getting a lens hood and a circular polarizer for my 28-135mm kit lens. Would they both fit on the lens at the same time? What brand would you recommend for the polarizer? Thank you! I have about 20 tabs open right now, trying to read all the reviews/comparisons I can. This is an expensive "hobby!"