Hello! I am looking for my first SLR and I'm having a hard time deciding... I don't want to spend more then $1500 and I have seen some great package deals online. (Nikon DS5000, D90 and Canon EOS Rebel T2i...) If anyone has used these camaras, what are the pros and cons? It looks like the D5000 pictures come out slightly darker? Is there a big difference between pentaprism and pentamirror? Basically, the things I want to shoot are family, children, animal, spontaneous, nature, landscapes... and I want to be able to capture children and animals in motion I.E. dancing, children sports... I'm obviously not a professional but I do plan on taking some classes in the near future! Any suggestions would be a great help! Thank you for taking the time to respond!