golds kicks ass. same price for tanks as bow valley and you won't be waiting for two months while mitch at bow valley spends your 100% deposit on alcohol.
once heard mitch ran stuff through on somone's credit card without permission and the guy had to get visa to chase after bow valley.
AND they don't prep the glass with any kind of solvent. they use VINEGAR!
i'd say go with gold's. they're very competively priced, and their customer service is second to none.