And yes, the classless character system is a whole-game decision. I haven't been able to build the standard classes with it, and I'm not sure it's exactly possible. If anything, I'd like the classless system to produce slightly weaker characters than the current system, as a way of offsetting the extra flexibility. However, at least for my preferences, I'm willing to have some balance problems in return for not having what I see as the straitjacket of character classes. Even if the classless characters are more powerful than the standard 4E editions, it's not a problem. As the GM, I can increase the threats to compensate. I'll just keep dropping elephants on them, and I have a whole lot of elephants.