I just use a LowePro 100aw. Kind of small now though... I'm having to leave lenses at home.
It holds my D80 + 18-200mm
105mm Macro
12-24mm wide zoom or both my 50mm 1.8 and 10.5mm 2.8
I clip on my SB600, my filter wallet goes into the pocket that holds the All Weather cover, fits perfectly, and a bunch of other gear just sits in pockets and what not.
it's a tight fit... i might be getting a 200aw as well now for outings that may need more than a few of my lenses.
I wanted a crumpler x dollar home or a domke, but they're so $$ =/