I'd try a different cereal. Josie got bound up pretty much with rice as well, so we tried barley, oatmeal, and millet, and it's been so long I can't remember what we settled on, I think oatmeal.
If you can get a look at Ruth Yaron's book
Super Baby Foods, she talks a lot about different grains and making your own cereal. I used it as a sort of template for my kids, didn't go along with everything (she's vegetarian and we're devoted carnivores, for example *grin*), but once we found all the other stuff that babies can eat besides the standard rice cereal in a box, it opened the door for a lot of new stuff for us all.
