Don't do what this guy says! Or at least don't stay in phase 1 for longer than a day. I've had used vim for a few years as a pico replacement, whenever I was on a remote computer on ssh. I picked up some really bad habit, like staying in insert mode all the time and using the arrow, home and end keys. I actually had to deactivate the arrow keys in my vimrc.

I would recommend going thought the tutorial, that comes with vim (vimtutor command) and after that reading those articles:

http://www.moolenaar.net/habits.html

http://www.viemu.com/a-why-vi-vim.html