So many choices for GC8's IMO.

Dan, if budget is an issue, 02 STI rims painted in any colour you want will look great, plus they are light etc etc, but yeah, it's been done.

WRP10 rims look good on GC's or even the BBS rims posted above... keeping with a 'stock' wheel

CR-KAI in gold, gun metal will also look great, as pointed out above.

It all comes down to price.