Animal - I don't suppose you can lay your hands on a set of DS2500's for some Alcon 4-pots, can you? I wouldn't mind some spares, and cheap as chips ones are even better!!
Discs, I always steer clear of drilled - they're good, but they're prone to cracking. Grooved or cresents is where it's at.
Oh, and EBC are abslolute gash, I ruined a set in less than a day, they actually crumbled to bits.