Am sure there are loads and loads of places if you search long enough on the net.
For me I did the same on my hardtail and upgraded/tarted it up with bits from Thomson and Hope. Bought most from Chain Reaction.
Replaced stem, top cap, stem spacer kit, seat post, seat clamp and bars.
The Hope bits were all the same colour, to match the Hope pedals I bought a couple of months ago, they have 6 standard colours with a fairly wide range of bits in those same colours.
Hope and Thomson is great quality, so it wasnt just about the looks but it helps :-). Loads of Thomson and Hope stuff on Chain Reaction, so it can give you an idea of what is out there.
Good luck