atmel winAVR

can anyone recommend an online guide or some tutorials for using GCC winAVR for programing atmel MCUs? I have only used PICs and coded with microchip C18. the transition is more difficult than i or thought.

>>4
GCC being open source the documentation is too bladed. Yes I can RTFM but i dont want to read about the history of RISC microprocessors (for the 400th time) just to know how to fucking write to a register.  and the atmel data sheets suck as compared to PIC imo.

get off your high horse. we both know its at lot easier to ask someone who has been though it who can maybe steer you in the right way so you can maybe avoid making the same pitfalls. Plz go back to your BASIC crap.