Aiden,
Definitely think you should go for the black roof if you're getting the sunroof. As said before I think the sunroof is fantastic and if my budget would have allowed I would certainly have got it. Can't have everything I spose
If you're dropping the sunroof of course get the white roof, have seen a DS/w in the flesh now and it looks absolutely the biz
Good luck with it mate, you're heading for hard times