Before you spend a lot of money, lets go over some basics:
Your clutch is made up of several parts, here is the list:
Clutch Cover and Bolts (M6, various lengths)
Clutch Pressure Plate
Clutch Springs, Bolts (M5) and Caps
Clutch Pressure Plate Bearing
Clutch Pushrod Pin
Clutch Hub
Clutch Basket
Clutch Plate 'pack'
Basic "blinging" of the clutch involves replacing:
Clutch Cover or Remove (Free - $250)
Clutch Plate (140 to $250)
Stainless or Ti Clutch Spring Bolts (Cheap)
Clutch Spring Caps (Cheap, Rizoma includes them with their plate)
Stainless Clutch Springs (~$40)
Effort Reduction is easily accomplished two ways, and can be combined:
Remove Two Opposite Springs (Free)
Place small aluminum washers between spring caps and hub to springs are less compressed. ($2)
With Some Pressure Plates you can Upgrade your spring caps into some sort of combined "hub" or "spider". See Motowheels or TPO Parts for Examples. This is not available on all pressure plate designs.
To lighten up the clutch in general, making the bike quicker revving and easier to downshift one can:
Replace Clutch Basket with Aluminum and Clutch Pack with Aluminum (Must be done together) (Up to $350 for basket, $175 for plates)
Replace Clutch Hub with Aluminum (Optional, additional weight savings) ($275 to $330)
Extra available bling:
STM Pushrod Pin with captured ball bearing. Looks a lot better than the stock, has the nifty logo, can't feel a difference in performance. ($40)
Tools needed for basic bling update: 5mm Hex Head, 4mm Hex Head (for the M6 and M5 bolts)
To replace the clutch hub and basket: Clutch holding tool, 32mm Socket, 12mm socket (for the M8 hex head bolts)
For the price of getting nuts and replacing basket, hub, pack, plate, cover, and miscellaneous doo-dads, one could enjoy the thrills of a slipper clutch - They can be had for around $800. (To somewhere near $2000 for super fancy models)
Places to investigate:
www.MotoWheels.comwww.PJsParts.comwww.DesmoTimes.comwww.TPOparts.comwww.motostrano.comI've had great success with all of these vendors and recommend them without hesitation. Enjoy!