This website will be your best bet for any questions you might have if you need an answer quickly. In the meantime, the big things to ask about are when the timing belt was last changed (MANDATORY @ 60k miles) and checking for signs of crankwalk. (You'll have to read up in the link below for the crankwalk stuff.)

Good luck with your purchase. Try not to nuke the GST, okay? Wastegates are there for a reason, ya know?

http://members.shaw.ca/costall/1000Q/brief.htm