Forget vi .
You want Vim!!!
That's Vi IMproved.
It's hugely capable. Yes, it takes a bit of getting used to, but so does everything.
It started life on the Amiga back in 1988. Bram Moolenar got an Amiga 2000, but wasn't a big fan of Ed, wanted something more like vi on UNIX. He found a proggie that was a bit like vi, but wasn't happy with it. The source was available so he started hacking away. Many moons later and with much input from users and other developers it is a very powerful editor, and is available on a large number of platforms (including UNIX, often being used instead of vi!!).
It's charity ware, but fully working. Try it.
Actually, you may already have it. I think vim in in several standard distros now.
