http://cgi.ebay.co.uk/Suzuki-SV650-L...742.m153.l1262
Link for 2003-2007 models (in case anyone else is finding this useful).
Also found out:
Normal size is 25mm. You can also have 40mm. This makes the bike 25 or 40mm lower.
Seller's name is Banditrob12
If you would go for 40mm you'll probably need a shorter side-stand.
Maybe Admin could make this thread a sticky as I'm sure lots of people would benefit.