I'm looking for recommendations for a rolling computer bag briefcase that will fit UNDER the seat in front of me. I've been using a Samsonite version for a few years but it is falling apart. It is imperative that I get one that will fit under the seat in front of me, since I generally work during flights and would like my bag handy (overhead is to inconvenient during flight).

I generally carry the laptop, a folder or two, and lots of smaller things in the front compartment. Thus good padding for the laptop is important, as is a front pocket (or several) with lots of small sections. It needs to have carrying handles as I use these to attach the briefcase to the strap on my overnighter when getting to and from the gate, etc.

Any suggestions? I see lots of bags out there, but most would not fit under the seat.