First Question: I was wondering if the viewfinder of SLRs displays changes from settings made on the camera. I'm not talking about displaying shutter speed or aperture in the view finder, I mean can you tell visually if a picture will be overexposed, underexposed or things such as that before you take the shot. I'm just asking because my p&s now doesn't do that. You need to look at the screen to see if your shot will be under/overexposed. Second question: Using a Canon battery grip, can you have a lithium battery and also AA batteries to double the battery time or does it have to be 2 lithiums or 6 (I think) AA batteries. Wanted to know whether I would need to buy an extra battery or not if I dont need to right now. I'd like to save the money for a good CF card. Thanks!