in reply to Learning Emacs
I later switched to vim (mostly for the sake of trying a new coding environment) and this is the feature I miss most. The autocomplete in vim... well it doesn't suck but it's not really the same.
Oh, I almost forgot, check out dotfiles.com for a collection of useful init files and macros. I hope you realize that from now on your life will be a quest for the ultimate .emacs ... :)