What's a good camera bag with a tripod holder?

I'm a semi-professional photographer, and on the move a lot. I use a Nikon D90 with a battery grip, speedlight flash and a few lenses from 50mm to 70-300mm. All of the camera bags I find with a place for my tripod are less than up to par with my Lowepro bag. Anyone know of some good bags with tripod holders?