...
This one comes up a lot - http://colorpowered.com/colorbox/
!!!! jQuery TOOLS - has lightbox effect and more... looks more well thought out too http://flowplayer.org/tools/demos/index.html
Neat effect for annotations overlays - http://tympanus.net/Tutorials/AnnotationOverlayEffect/
Maybe use for Myra's website to show hover on projecs... but it should be reversed not lowered - http://www.sohtanaka.com/web-design/examples/hover-over-trick/