Buying a 2005 Boxster

Hello all,
I hope to join you all in the near future as a Porsche owner, in the meantime I'm just a newbie looking in the window!
I'm hoping to buy either a 2005 Boxster or Boxster S from the good folks at Pioneer. Unfortunately finances will probably dictate which model I end up with and that's where my next question comes in:
Having never purchased a Porsche before, I have no idea if they're sold at MSRP or if you can in any way haggle with them for a better deal. Am I pretty much stuck with whatever price is on the window sticker?
Thanks for any replies!
I hope to join you all in the near future as a Porsche owner, in the meantime I'm just a newbie looking in the window!
I'm hoping to buy either a 2005 Boxster or Boxster S from the good folks at Pioneer. Unfortunately finances will probably dictate which model I end up with and that's where my next question comes in:
Having never purchased a Porsche before, I have no idea if they're sold at MSRP or if you can in any way haggle with them for a better deal. Am I pretty much stuck with whatever price is on the window sticker?
Thanks for any replies!