Well, the ACT clutch was installed yesterday and I am happy to have my car back running and putting all it's power down to the ground instead of my slipping clutch.
My car did not in fact have a dual mass flywheel, but I had to upgrade to an STi flywheel in order to use the STi sized clutch. The STi clutch would not work with the stock Spec B flywheel, it was too small. But for the $100 extra they charged me for the STi flywheel I was not too upset about it.
So far I love the way the new clutch feels. I still have a little shudder but that will pass after it gets broken in. I will let you know how it feels after break in, but so far I really like it.