Just for kicks, I tried Incudrummer's set up and it felt and looked absolutely retarded- I kept hitting the hi-hat's while trying to reach the toms and flams on the snare just felt plain awkward....You'll be much better off with the "conventional" set-up.
As far as unorthodox set-ups, i saw Kenny Aronoff playing with Melissa Etheridge recently, and he had his middle tom on his left side, and then his high tom...but they weren't right next to each other- they were seperated by about a foot...I'm not really sure what kind of advantage this has if he fills from left to right- as most people do.
Aronoff has been playing his kit like that for years. It seems he could get by with a traditional 4 piece set up because most of his fills are between the rack in front of him and the floor tom. He uses the smaller rack every now and then. But thats Kenny and it wouldn't matter how he set up his kit, he'd still rock your face off!!
