Hi Shaun,
To view the mag 12 Pluto occ of the 29th June, you'd need something like an 8" telescope, preferably with a camera like a G-Star EX or a Watec 120N low light video camera.
To make the visual interest into a scientific recording that will help professional astronomers learn more about Pluto and its environs, you'd also want a video time inserter and some means to record video, e.g. a framegrabber or a video recorder.
Have a look at Blueskies (Jacquie)'s excellent document on occultations How To at the following link:-
http://occultations.org.nz/videotime/manual.htm
And keep us posted on what you do !
Regards,
Tony Barry
WSAAG