Fogg have just released a new version of their B Sharp bag - it's a little deeper than the old version, and has a front pocket specifically designed to hold an ipad together with a decent amount of photo gear.
I've been using one for a couple of weeks now, and it's rapidly become my all time favorite bag.
It comes in various colours, here are some pictures of one in Charcoal with Oak leather.
It's beautifully hand made by Nigel Fogg and bee berman in France. I've been dealing with them for a few years now, great service, and wonderful bags.
What was inside (but with room to spare)
In the UK you can get them from Robert White:
all the best