Skillet,
The bags at W&M don't appear to be that expensive:
The small, slant two-tone tan are about $115
http://www.buywillieandmax.com/pd_sb900_coffee.cfmThe big are about $140.
http://www.buywillieandmax.com/pd_sb902_coffee.cfmThrow in another $150 for the Easy Bracket.
I like the blue...if it matches close enough to the Neon Blue on my SM.