hey buddy,

just check this link out:
http://www.mynrma.com.au/cps/rde/xch...768EC-ECEB2830
read all of it, even print off this check list:
http://www.mynrma.com.au/cps/rde/xch...768EC-ECEB2830
and take it with you.
most importantly dont be scared to question anything that seems out of place or different. the seller should be trying to convince you to buy it, not you trying to convince yourself....

dont forget to do REVs check!