Here's one of someone who isn't Melissa or Kaley: Sara Rue, who played Stephanie on the show. She was only in the show for about 3 episodes, but she stuck with me. I like redheads, and I like chubbier girls, and seeing someone who was both and beautiful really pleases me.
Sorry for the smallish size and the watermark at the bottom, but it seems like most pictures of Sara either have her be chubby but not a redhead, or redhead but not chubby (apparently she lost most of that weight recently), plus this one's quite a good picture otherwise.