I love cats but that litter box is the death knell of owning a cute cuddly cat. But you can change all of that one of two ways. Either purchase a "system" for $55 online, which isn't bad, or do it DIY style for under $10.
Because I'm a bit of a skeptic, I'd opt for the DIY approach so as not to be out all that money. Plus, I love a good DIY challenge!
Excuse the quality of the video, but I promise, this is THE BEST tutorial I could find online. Most videos show cats going in the toilet but never show HOW it's done. If you go this route, be patient with your kitty. No yelling. No screaming. No beating. No punishment. They're not human after all.