I admit it, I butted in where I didn't belong... but I just couldn't stand listening to a conversation in a "big box" retailer yesterday. I won't say which one other than to mention that the store name rhymes with "Vest Guy". Me, I needed a new set of batteries and I was having lunch next door, so I stopped in to buy some. I walk in, walk by the camera department just to look at the toys, see what they carry, etc. There is a salesperson there who was greening a lady customer about how he was a "serious photographer" who could help her choose which camera to buy... So she asked this "serious photographer" some "really hard" questions, and he stammered, hummed and hawed about the answers to the point where he had to go ask somebody. Really tough questions they were: Does the Rebel XTI use AA batteries, or if not, what kind does it use and how much do they cost? Also, did she need to buy spare batteries? Does it use an SD card like her point and shoot Canon, so she can use the cards she already has? Does it use any of the same lenses that her non-digital EOS Rebel uses, since she already owned three different lenses? Does it have a flash built in? He answered that he was pretty sure the XTI couldn't use AA batteries, and thought it may use a rechargeable battery. If that was the case, it probably would shoot about 200 or so pictures on a charge. He told her that he was pretty sure it did use SD cards, and that her cards would therefore work in it, and that he didn't think her EOS lenses would work because they had a different mount on them. It was at this point in time that I had enough... I know, I shouldn't have said anything but this guy was about to really mess over a customer, and I just couldn't take it. I basically said "Excuse me, the camera can shoot all day on one battery (my boss can go 1000+ shots on one charge), the batteries are like $50+ bucks if you want a spare (pointing them out on the rack right behind them), that the camera most definitely did NOT take SD cards (pointing out the right memory cards to her) and that it absolutely would take any EOS lens she might have. Since she was just using the camera for family stuff, I advised her to skip the extra battery. The salesperson glares at me and just stomps off, and I go on to tell her everything I know about an XTi (which is some, but not enough to be a salesperson on one) and explain to her that I am a Nikon person and could answer questions better about the D40/D40x, D80 and D200's they had in stock. A few minutes later another clerk came over and I saw her loading up with an XTi & memory card... I think I deserve a commission on that sale.