Congrats on the bike- I've had my 6n for about 6 months and absolutely love it. How do you find the bike compared with the SV?
Your best starting point for mods would be
TwinShack who have a good range of bits and bobs. Remus can is also cheaper than I've found elsewhere (plus an extra 5% discount at the moment I believe). Hope that's of some use.
Dave
Edit: Not 100% sure whether the prices on TwinShack include VAT or not... may explain the cheap looking prices! :256