Guy, the tartans I recommend are as follows
Holyrood(nearly finished)
Campbell of Cawdor(my wife's tartan I wore at our wedding)
Scottish National
Black Watch
Black Stewart
Ancient Buchanan
My favorite is the black self colour, and presently a smokey grey kilt with a matching vest that we are finishing up on the prototype.
Maple Leaf
I suggest these if you don't have your own or choose to wear a different one.