I bought an Exedy Sport from Adam at Z1. It's not installed yet (long story...) but I imagine I'll like it. Adam's a great guy.
The Sport is an STi clutch, without the STi name or price. Subaru uses Exedy for their OE clutches, even the STi ones. I think some, if not all, of the ACT clutches are made by Exedy too, but I might be wrong.
I didn't opt for the flywheel; I want to retain the around-town driveability.