Here is a great compendium on the bear cannisters out there:
http://calipidder.com/wp/2009/05/bear-canisters-the-pros-and-cons-of-different-designs/An excerpt from Calipidder's website -- great info!
Brand Weight Volume Price Material
------------------- ------------ --------- ------- ------------------------------------
Garcia 2 lb 12 oz 614 cu in $69.95 ABS Plastic
Bare Boxer 1 lb 13.6 oz 275 cu in $39.95 ABS Plastic
BearVault BV500 2 lb 9 oz 700 cu in $79.95 Polycarbonate
BearVault BV450 2 lb 1 oz 440 cu in $66.95 Polycarbonate
Bearikade Weekender 1 lb 15 oz 650 cu in $225.00 composite carbon-fiber and aluminum
Bearikade Expedition 2 lb 5 oz 900 cu in $275.00 composite carbon-fiber and aluminum
Ursack V27 7.5 oz 650 cu in $54.95 Vectran 27 yarns per inch
Ursack TKO 8.2 oz 650 cu in $49.95 Coated Spectra
Ursack Aluminum Liner (note that this combines with one of the two bags listed above)
