"Toilet"-Training

Does anyone have experience with training a cat to use the human toilet?
My boyfriend's late cat (may he rest in peace) went on the human toilet but he was trained from the minute he was capable of walking or something like that....
I a sick and tired of litterboz cleaning and litter being all over the house and am hoping I can train Singa (and eventually the new kitten) to use the toiletbowl.
I already bought the set. It;s called Litter Kwitter or something...

Any experiences? Hopefully some success stories???

There's a thread on toilet training your cat. IMO its not that big of a deal to scoop a litter pan once or twice a day. I think it goes against the cat's natural ways - they are ingrained to bury their waste!