My Girlfriend had a similar problem with her 01 SV650S. She'd dropped it at a set of lights, standing still, she put her foot down, got something slippery, lost balance, and over she went. Minor cosmetic damage to the bike, and nothing more than embarrassment for her. Once she picked it up, though, the bike wouldn't start.
I was able to put a screwdriver across the terminals of the starter relay, and the bike would fire up, but nothing off the starter button. checked the kickstand switch, no change.
Eventually pulled the clutch lever off, and checked the little switch under it. worked fine, but when I put it back together, and ran a multimeter over the contacts, no joy!! It appears the clutch lever must have bent inwards about 5mm (for those non-metrics out there, about the width of
's sign). didnt stop the clutch from working, but was enough for the switch to not operate.
Check both the clutch switch and the sidestand switch. Do they operate (i.e. do you get a short across the contacts when you operate them?), and do you have power to them (may or may not be 12V, you'll need to look up your service manual for that)?
and keep us posted