Im a fan of the smoked rear lights, but id pick standard smoked lights over the dark one for a few reasons. Dark tinting to rear lights suit darker cars better (even tho i use my standard lights) I take it which ever one you pick it'll be on the car with the back panel and vauxhall logo?
them blacked out ones are sooo illegal, if a pig went past he'll pull you over and rape you up the ass! gsi ones, or a set of easyrob's red/clear ones? suit white astras a treat. or if your having the black panel, then a set of robs smoked ones.