> Atmel AT90S (AVR) series RISC processors:
> http://www.atmel.com about $250 for  uProcessor,

Where did you get THAT price??  (Or is the a game of "find the decimal
point"?)

The ICE is $200.  The development kit (demo board/programmer) is $50.
The assemblers (one from atmel, one from IAR) are free, as is the IDE, which
is also the front end for the ICE.

I'm using mine right now!