Clutches!!!

Depends how you drive as well.. but its just worth going heavy duty anyway. I think they give much better feel and will serve you better with some light mods. 
The other thing id do is to move to an uprated pressure plate. Giving more force for the clutch. Nothing crazy here just a heavy duty or slightly uprated item.
It will give a slightly harder quicker pedal feel, which can be a touch more tricky when taking off, but you'll find is much better when your actually moving. 
Exedy clutches are very common. Pretty sure they are seen as decent general items.

I use a std 1600GT capri clutch pressure plate on a 1700 xflow , twin side drafts, big valves and cam, never had a problem. I did have to open up the dowl holes on one AP plate but that was  years ago and very simple to do. 
You could up grade to a pinto clutch and pressure plate, but thats a bit of a hassel. I dont think its worth the trouble.

Clutch Industries have the RPM sports range, which have a few options for the type of clutch plate, using the same heavy duty pressure plate.  You should be able to get these locally through various auto stores.
 
http://catalogue.clutchindustries.com.au/product/view/91826/R28N