Ange Gardien wrote:
I think you could make a little tour to rpg.net

It will be difficult to explain this in my non native language
True 20has three Classes : Experts, Adepts and Warriors...
Characters gain one feat per level.
Magic is viewed a bit like feats... You have acces to one power per feat...
C&C is a way of getting rid of feats, skills (yup skills too) and all the tacticals stuff many players (like me) don't like.
C&Chas to do with an ADD1 like game but with a D20 core engine

But don't bother...
It's not very difficult to convert DD3.5 to C&C or True 20

Well, I have to go to bed : 3.30 AM here in France

Yeah I agree with Ange. People that own True20 or C&C (like me) can make their own adaptations.
I can't wait to see the 4th edition version of it though. If the new set of rules 'click' with you, do you plan to have a rule-only book so that we won't have to buy it twice?

You could look also towards paizo.com, they plan on releasing a 3.5 compatible new version of the core rules... It could be useful in case you don't like 4th edition but still want people to play with your game and be able to buy core rules.
But anyway, the universe of Amethyst is great. I bought the PDF earlier this week, and I just got the hardcover ordered. For a nice book like that, HC is the best!
Hyb'