Recommendations for a rolling bag?

Hi all,

I'm in the market for a rolling bag to make toting my gear around a bit easier - particularly through airports and the like not so much 'onsite' for photo shoots, etc. I've been looking at the usual forums for suggestions as well but figured I'd throw it out here for suggestions as well.

My requirements:

Reasonably sized - can be carried on most flights, including international

Needs to hold:

2 Canon DSLRs (a 7D and 40D)

70-200 F2.8L, 24-105 F4L, 28-135, a couple of 50mms, 2 580EX flashes, a tripod

Anyone have any experience, recommendations, etc?

Thanks all!