Ditto the 14 tooth front sprocket mod, well worth doing.
Oh and get one with the panniers included. They dont appear to add much to the price of the bike but they cost nearly £500 to buy afterwards.
Oh and if you get a blue one then i've got a nice baglux harness you could buy...
http://cgi.ebay.co.uk/ws/eBayISAPI.d...e=STRK:MESE:IT