I ended up putting about 300 miles on this weekend and had to wear a backpack out of necessity. The distance was fine as it was round trip and over two days but it would have been *way* more fun without the bag. I'm looking for a fairly small rear seatbag, considering something like this:
http://www.rka-luggage.com/pages/10r...s16/xrs16.html
Just big enough to hold the laptop, rain gear, and a change of clothes or two.
Any suggestions?