Any experience with Ortlieb Office Bag?
 

I'm currently commuting with clothing and lunch in a duffel bag strapped to the top of my rack and my laptop (and associated peripherals) in backpack. Things I don't like about this setup...

1. Backpack is HOT! (Maybe this will be a plus when cold weather comes. Don't know.)
2. Don't like the weight of the computer gear up high on my back.
3. Would prefer to get the weight in the duffel back even lower. (Bike wants to flip as I'm walking it into the building.)

I'm currently looking at the Ortlieb Office Bag Classic Large along with their notebook sleeve. It looks perfect, but I question if it will carry all the gear I generally haul...

* Pair shoes
* Belt
* Pants
* Shirt
* Lunch (modest)
* 15.4" Laptop
* External drive (or two)

Does anyone have enough experience with these bags to know if this is a good solution for me?

Alternately, suggestions for other solutions are fine.

I use an ortlieb office bag. I think your choice is between one overstuffed bag and 2 bags w/ room in them. I would divide your load up between office bag (computer, drives, lunch) and another pannier (clothes). If you jam it all into one, you will need to decide how much you want your lunch and clothes getting squeezed to fit.

Ok. Thanks for the advice.