After going through at least a dozen bags I've finally settled on three main bags:
Crumpler 7 Million Dollar Home: This is my "on the job" bag.. when I need to carry my full DSLR kit or DSLR + 2 lens + RF body and a couple lenses. It's discrete... comfortable even when packed full and doesn't scream camera bag.
Kata Panorama U: This is my hybrid bag when I want to carry an RF and a couple lenses but also need room for real life things like a laptop, a book or magazine, files and paper work etc. It will fit two RF's with smaller lenses attatched in the bottom segment and there's three cool little pockets in the top half for more lenses and it's got a laptop section. The coolest thing is it came with a little pouch that velcro's anywhere inside that's PERFECT for my 15mm finder.
http://gear.ign.com/articles/758/758734p1.html
Lastly is a leather bag from an company out of England called Grafea... I'm so in love with this bag it's ridiculous. I bought it second hand, the previous owner sewed some velcro inside to add dividers, I'm sure there's other inserts that would work. This is my everyday bag, it fits both my RF bodies, four lenses and a bunch of random crap. It's comfy and most of all it's stylish as hell, I've gotten more complements while wearing this bag than ever before. Complements don't make my pictures sharper, but it does start conversations which builds a rapport and has let me take pics of strangers easier:
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http://www.grafea.co.uk/shop/Leather_Camera_Bag.html
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