If you've broken a few zippers from overpacking you might want to look into Burton's new duffle which just be the solution to your overpacking conundrum. Burton's AK 80L Duffel uses "CRAM" zone zippers which places an elastic panel around the zips to give you extra room when your packed to the brim. $100, Burton.Link
Burton's luggage line gets the ruggedized Filson treatment
A rugged luggage collection for the discerning snowboarder.