Being rather busy I completely forgot to post the link to this last week, but I wrote an article for the great tutorial site NetTuts about CSS3 transitions.
It is a introduction for those who haven’t used the transitions before and goes on to a little more advanced usage within CSS3 animations – so go check it out at http://net.tutsplus.com/tutorials/html-css-techniques/css-fundametals-css-3-transitions/