I was actually planning on a seven string at some point. If I do get one, then I am getting the ESP Hex 7. It is the signature guitar of Adam "Nergal" Darski(Behemoth). I have had a chance to play one and it sounds/feels great.
I guess my biggest complaint amongst guitars right now is that it seems like all the "metal" brands are trying to reach past the 24th fret. I don't really view that as necessary.
I think it might be a little too "extreme" for my tastes. I understand what is trying to be accomplished, but in the long run, I prefer my Six-String axes! Most likely because I am still trying to figure out how to play with just six strings!