No offense to the sponsors of this site, but a Porsche dealer that is not a sponsor to this site (but has a similar name to one mentioned) sells all porsche parts at 15% over cost for all out of state buyers and is the lowest I found on all parts (some may run specials but accross the board this place rocks). I have bought parts from them for the last 8 years and can't say enough good things about their service and accuracy of filling orders and getting part numbers. I have a feeling I am not allowed to post the name here...their name can be found with a search on ******** for lowest oem parts.
Hendrick Porsche (4porscheparts.com) beats the prices of both "Sun" dealers - try them for a quote and you'll see. Regardless, I always check them all when I buy something just in case some sort of special sale is going on.
Aaron at Suncoast won my loyalty by working extra hard to get me all the parts I needed by the deadline I had without my chasing him up and shipped extra fast without additional charge because he knew my deadline.