So I stand at the precipice and you push? Well played! ;)
I did look a bit at the Ristretto, but I'm thinking it's almost too small. I'm about 6'4" and I don't want it to be too "purse-like."
I am partial to messenger bags over, say, backpacks as I do think they look a little more professional. But that's just my opinion -- people need to use what works!