Tony,

There's probably a more comprehensive comparison between the Tyros and the 3000 somewhere on this site, but here's some of my observations...

Compared to the Tyros, the PSR3000:
1) Is lighter
2) Contains fewer voices but still has most of the Tyros voices, including all MegaVoices
3) Makes use of 'USB to Host' and 'Smart Card' which are both superior to floppy disc found on the Tyros
4) Has built-in speakers
5) Has most of the Tyros styles and quite a number of new styles not in the Tyros
6) Has less memory
7) Lacks some of the punch and sparkle in the overall sound, but is still very good
8) Does not have the 'live' drum kits
9) Keybed is inferior to Tyros
10)Seems to be a great value - a lot of keyboard for the money.

Tim