Do you frequent any SV forum/boards?
I frequent a 600RR forum, and it makes it so much better when trying to find what particular mod goes good with your budget/riding style/preference. If I were you I would google an SV site, I'm sure they have one. That would be your best bet, because maybe Manufactuer A on a Suzuki is better than Manufactuer B on that Suzuki, but different on a Yamaha, you know.