htop - a prettier top
You use top right? No? Well, that's probably because top is not the friendliest program in the world. Yes, it gets the job done, but it could be prettier.
As I was using top more and more for monitoring my VPS, I looked for something a bit nicer.
This is where htop comes in. It's top, but with colours, progress bars, and a process tree view. Much better. Try it, you might like it.