Ross,
I have the ARB canopy, smooth finish with racks. Very happy with the setup. One thing to take note of, though...when mine was fitted and obviously after the sports bars were removed, I noticed small indentations in the panel work where the bars had been over-tensioned to the side of the tub. My D22 is white and it is not so noticeable, in fact I don't even notice it at all now, perhaps because you just get used to it forget about it. I was told by the Nissan dealer I go to that this issue is common in the D22 and you will notice it more with the darker colours. The service manager in fact said some he had seen were shocking. Mine is an 06 D22.. I do not know if this is still an issue with the newer 2.5 CRD.
When I made a warranty claim (really more to just see what Nissan would have to say for themselves), it was rejected by Nissan. Shock horror !!!! Their excuse was that the sports bars are part of the vehicle as sold and bad luck if there are a couple of dents behind them when you take them off. Also, they said I should have fitted the "genuine" Nissan canopy, because theirs hangs down over the side of the tub slightly more and covers the said dents !! Thanks for telling me that when I bought the vehicle, I said !!!! Hope this info helps.
Dave