BTW Ken, it would be a good idea to sample some 18F from Microchip. Get a couple of 18F1320 and perhaps a couple of 18F4550, something like that. You might get them in a few days, they're pretty good on delivery -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist