Originally Posted by azjs
Aw dude cmon u callin me a poof now eh?
twisted - as lud02c said, check out paint differences between panels, check where panel bolt up e.g. front fenders underneath the hood should be bolted down with bolts the same colour, if not, then they may have been reassembled from previous bodywork.
Engine - log books are okay, but drive it to be sure, an nrma/raa/woteva inspection would probably be your best yet, sometimes it can be tough to pick out a lemon if it's all been blinged up by a detailer the day before :D
100K service will set you back a few hundred so be wary of that as another cost down the road...
There's HEAPS more specific prelude stuff to look at, I'd recommend checking out the numerous threads on PreludeAustralia, they're pretty useful - listing some known issues with gen 5 preludes such as tiptronic problems, shock knock, etc
good luck!
-az