So I was looking at options and maybe changing the rotors to something drilled, slotted or dimpled to add a bit of style.

So first off, whats the cost for a stock set of pad, front and rear?
Best brands without breaking the bank for pads and rotors?
Is it worth getting them on eBay?
And how easy is the work?
Background - Years ago I did a front brake upgrade on my CC coupe, swapped the rotors pads and calipers with those from a M21, clearly doing a rotor/pad change should be easier. But a little worried getting the new pads back on with the pistons out too far?
Also with slots/drilled will the pads wear quicker or does it depend on the pads used?
Will the ABS be an issue?
Any advice on brands and where to buy they would be appreciated.