Yes, I know Leopard comes with Time Machine. And yes, I got Time Machine working with my Time Capsule. So I have a painless backup system. But honestly, I don't like it. Two reasons: 1) It fills up the whole stinking drive (almost). Time Machine just keeps mindlessly making copies of all my files until it fills up the hard drive in Time Capsule. If Time Capsule had a preference that said, "Only use up ___ GB of space," I could be happy with this. But no such option exists. 2) It's not recoverable from another computer. Suppose my iMac goes up in flames. I'd really like to recover my files using my PC. That means my files need to be saved simply as files, not as some strange binary format.
So, I need another backup program, something for my Mac like Second Copy on my PC. I don't know what I'm going to use, but I found this nifty page listing tons of options. I'm gonna start trying them out. Let me know if you have one you use.