I'm also using Alias|Wavefront's Maya... if that's what you're pointing at.
I'm not sure I completely understand what you're saying about the limitations of surface modeling??
I do appreciate clay much more having worked with it a few times. I'm by no means even close to being decent at it, I just don't have the patience to work with it. I've been meaning to make myself do more clay work, I've still got a couple of unopened boxes laying around somewhere. I'd really like to get enough to do a sculpture of a car with it, but that stuff is expensive to get that much together. Man, thanks for re-igniting that goal. I think I may see if I can find a store nearby that sells some clay and give it a whirl. You'll probably never hear anything of it again, but if I stay with this, I'll post some pics.