to answer your questions plus some other's that you may be thinking, check out the faq at the top of the engine performance thread here .
to quickly answer, stock psi is 13.8 - 14.1 or something close. the accessport is a nice mod, unless you want to upgrade to a turbo bigger than a vf30/34. that is unless you will wait a few years until the accesstuner comes out.
check out the regional forums for any PA people. and congrats on the purchase
p.s. i like my ap