Friends, I am currently using both the PIC and the HC05 family. I want to expand by learning a new MCU. I am hoping to get some advice from anybody that has experience with these chips: SX, AVR, Z8, or my favorite SST's "FlashFlex 51". The FlashFlex has two options for internal flash: 20K or 36K. Pricing isn't too bad. A development kit that costs about $150 US. The AVR and SX look very nice. I don't know much about the Zilog chip. I have experience with the AVR and SX (although limited), but I'm getting ready to invest a good amount of money in one of these families. Any advice/comments would be appreciated!! Thanks in advance! Best regards, Steven Steven Kosmerchock Engineering Technician/Student CELWAVE Phoenix Arizona USA Email: steve.kosmerchock@celwave.com