Considered getting one before the current SV, does 60+mpg and will go forever. Common mods are extended screen and knuckle guards (mainly to stop the wind chill)
Do watch for the exhaust headers as they can rot fairly quickly and aren't cheap to replace.
Does weigh a bit though but its very easy to ride around down due ti the low seating.
Some owners complain about the suspension being too soft under braking but I remember reading about lowing the front end through the top yolk to change the geometry and improve handling. I'm sure I saw some progressive springs on fleebay as well if you want the suspension to be a bit more planted.
Also I think the post 2001 models had linked brakes? But don't quote me on that one.
One thing that put me off getting one though, is the fact it's a wonderful bike, but its exceedingly dull.
Here's a couple of links to browse through -
http://www.elsham.pwp.blueyonder.co.uk/deauville/
http://www.deauvilleuk.org/forum/