I just got a canon a75 and I want to know what the best type of rechargeable batteries are for it. The manual says to only use the Canon charger and batteries, but 250 minutes takes sooo long to recharge and I would like something faster. Anyone have a solution? Also, should I buy the Canon AC Adapater for the a75? I would, but it's so expensive I was thinking it would be like $10, but I look and its around $50!