How much water do ya need to carry? If you don't need 100oz, then the above link is a waste of yo time.
I've been using the Dakine Session for a while now and aside from being a little heavy compared to a Camelbak Classic, it's fantastic. The reason it's heavier though is b/c you can actually hold some cargo. I think if you were to compare it to the Rogue or the 70oz Lobo...it would be similar in weight. The price you pay for ruggedly built storage.