If you like tweaking synths for leads in a quick and easy fashion but still get results I recommend Novation V Station (maybe Use synthation presets as an example on the direction of getting a good sound!)
but if you also like a high quality sample based synth I recommend Nexus by Re-FX - these will easily provide you with the sounds you want lee mate
Louk
ive actually just orderd that so ill see how i get on with that ;)
SHOUT OUT TO MY CREW THE DISLEXIC CREW,I CANT COUNT TO 4 IM A RAVER