Well I just took the car to one of the local Porsche specialty shops. They took a look at the car and took it for a test drive and said that it was fine. They explained that the clutch on the S is a little different that than the base Boxster and the 911 and that it would appear to be a bit heavier. They actually had a base Boxster there that just had the clutch replaced and it was definitely different.
Now that I've gotten a professional opinion on the car, I have some peace of mind.
I can now take the money that I was planning on spending on a new clutch and put it towards some mods.
Thanks,
David