kerkythea is the business. i have vray for sketch up. its handy that its in sketch up and doesnt mean you need other programmes but the quality isnt great its nothing like vray sp3 for 3ds max. id advise if you have the cash get max and vray. exporting to max is perfect and simple and the results youll get are mind blowing. the asgvis vray for sketch up is much slower and renders slightly different. if you dont believe me just check their forums heres rare flashes of quality work!