I think D2 started off as a generic brake thats been rebranded, loads of them about. Personally I'd go for the KSport from Mitz@CS. They will be about the same but at least he's a known trader and Bennett has given his a ragging and they are still going strong. You also know you can get replacement pads and discs for them as they are the same fitment as the AP brakes.
Akebono equally are a good call as they are just 370z brakes, so there will be a lot of options for pads and discs turning up soon. You also know with these as they are spec'd for the 370z that the bias is right and wont upset the car as the weight of the 350z is almost identical to the 370z. If you do want the Akebono, maybe try Lee and see if he's broken a 370z recently as he will do them cheaper. You'd then just need to get the brackets and some aftermarket discs. Probably cheaper than shipping a kit from the US. Depends how good a deal someone like Tarmac can do you I guess.