Yikes...another purdy neat bag to get confused with the rest of them sitting in crew rooms across America.
Most people carry their laptops in bags...clipping the bag to the rest of your gear is optional yet recommended.
I use a $50 Samsonite flight kit...it fits in the CRJ so I would imagine it would fit in anything with a normally cramped regional aircraft cockpit...
Don't get anything with wheels because people will make fun of you...people back in the day had to carry their suitcase AND their flight bag...and this was when laptops were the size OF a suitcase. Anyone remember those days? I have to hear all about them from the mainline people here...
