Good site.
If your into British bikes then I can recommend SRM
http://www.srmclassicbikes.com 01970 627771 for anything from parts to a full restore.
My cousin works there as an engineer and i've known Geoff Dewhurst the Managing Director for about 30yrs. The quality of their work is 2nd to none and allways willing to offer advice and help if you've got a problem.
They specialise in BSA's but deal with all British bikes, worth checking out if you need anything.
Growing old is inevitable. Growing up is optional.