it appears these are entry level dSLRs - feel free to correct me. I am really trying to understand. It seems I cannot meet my indoor sports needs with a Digicam, so I am checking out the feelings on these 2 camera models. How far will they zoom compared to a 10x zoom digicam. I don't understand the "f" numbers they give regarding zooming. Do I need to purchase another lens to be albe to zoom to optical 8-10x? Any beginner, mother-types have either of these cameras? I don't need to shoot for sports illustrated - just want acceptable indoor/outdoor/vacation shots? Oh, and, do they have macro ability? Just starting to research this today, so pardon my elementary questions.