[fizzwheel]

Cheapest way will be getting the correct springs for your bodyweight fitted into your existing forks.

Has your bike done alot of miles ? If so you might want to think about doing something with the rear shock, they do tend to go off after a certain amount of miles. I found the handling was transformed just by

1. New fork oil
2. Replacing the rear shock with a new OEM shock that had done alot less miles than mine had.

Have a search its a well covered subject, so theres loads of threads on it.