I saw you mentioned clueTip recently as a possible replacement to boxover, so though I would post some feedback.. Very cool, lots of features, have had some fun playing around with it.
As far as getting it up and running /styled, not quite as easy as boxover, and if you want it to play nicely with other content created or manipulated by JS you'll need to setup event listeners; which is not for the JS novice.
Also discovered it doesn't work in Google chrome, it only displays the first clueTip on the page and ignores all others.
So in my opinion, I like it, I will use it, but would also like to see boxover stick around too...