In regards to a few things:

I'm positive that WAR will have a customizable UI. Even DAoC had that, even though it wasn't quite as simple to setup as WoW is.

And as far as nerfs, Ugh I don't want to hear it... I played a scout from day 1. I went from one-shotting anybody to having a chance to impale myself (slightly exaggerated, but still...)

Now if anybody knows of a way for me to sneak into the beta...