Usually people look between Canon and Nikon for DSLR cameras. A good zoom will come from buying different lenses (you'll probably get a 50mm or so with the camera), but I find cameras like the Rebel series are at a nice price range for starting off.
Obviously, more megapixels will allow for cleaner pictures, but it's best to go into the store and ask for a few opinions. Now might be a good time during Boxing Week to save, since I saw a few great cameras getting up to $300 off in sales. Unfortunately, zoom on a DSLR is physical, so buying a zoom lens will be necessary for longer distances.
G'luck! ^^
|