Hello,
I agree with eckhard, and I suggest the MC68HC908GP32 which seems to be the simplest MCU to start with (I noticed that even the 908QT/Y Tutorial is based on GP32 examples...).
Furthermore, some people may find the 908QT/Y MCUs simpler than the GP32; I see this is wrong because the Nitron Family members (908QT/Y) have special considerations regarding Flash programming and the TRIMMING issue... so more reading is required to start with these MCUs.
Best Regards,
Roger Tannous.