klmcallum - RAW files basically save more information that a JPEG. You can sometimes retrieve stuff off of a RAW file that you couldn't get off a JPEG. The drawbacks are that RAW files take more space on your memory card and computer, and fill the buffer of your camera faster when shooting action scenes. That means your camera slows down until the buffer empties and has room again. Plus, if you don't like the editing software that came with your camera, whatever software you buy has to be compatible with your camera's version of RAW.
Hazel - I really like your pictures of the titmouse it looks like a tiny gray jay. Is it as small as the pictures make it seem or is it closer to blue jay size? (I've neer seen one and I'm curious.)
Dr. Seuss~DLH (brother's cat)~June 2007-
Misty~DSH (my cat & Mooby's mom)-?-
MooBoots(Mooby) ~ DMH(Mom's cat)~July 21, 2008-
Sunshine~ Golden retriever X white german sheperd (Dad's dog)~October 24, 2008-