Oh, I won't be doing it on my own or anything, I would take it to a shop. But that make sense what you said there about the centering device (our bearings do not go into the rotor) it would probably just take the right-equipped shop, thats all.
eh, it depends on how you look at it. THe bearings go into the hub which is bolted to the rotor. Now, I've never considered using the universal adapter to fit the giant opening in the rotor, but if it were my car, i'd have it turned with the hub on. why? well, the bolt holes have to be centered, but the giant opening may be off a few thousandths due to machining, or extra material. However, the bearing hub will always (unless fubar!) be on center.
just my 2 cents. Ill have to get a hold of that style rotor, and see if i can cut it with the adapter.
as far as brake pads go theres a few options (this is my personal preference.)
Mostly race , little street: EBC Red Stuff Brake Pads. they take a little longer to warm up than green stuff, but are very good at resisting fade.
Some Race, Some Street: EBC Green Stuff Brake pads. Warm up quick, resist fade, but lack the stopping power of red stuff (still a very solid pad..)
Little/No race, Daily driver: Wagner Thermo Quiet (ceramic). I can't say enough about this pad. I put it on all the cars i've ever driven. Low dust, Low noise, great resistance to fade (for a street pad), and last pretty long.