Welcome to the site bro.The sky's the limit on these things,ask 20 different people and you'll get 20 different opinions so best just to do a lot of looking around and if you find something that peaks your interest then look into it.I had $40,000(including the bike's initial cost)in my last one(turbo,McINTOSH arm,RC Imposter wheels,etc.,etc.,etc.)and this time bought a new one again in 2011 and just cleaned it up a little(Brocks exhaust and top triple tree,Puig windscreen,Oberon bar end mirror,Pazzo levers,lowered it a couple of inches[adjustable lowering links],seat redone,new chain and sprocket,blacked out the taillight and turn signals,different graphics,Schnitz quick turn throttle,Vortex gas cap,SpeedoHealer,Heli-Bars,all short stacks/Sprint air filter/dyno tune,and probably a dozen other small mods I can't think of at the moment).
2003;
2011 I have now;