My first attempt is actually pretty cool. Why? Well, 'cuz it's HTML, dHTML, and Javascript. And the rollover's more than just a simple rollover - it has 2 "onMouseOut" pictures and a melded "OnMouseOver" picture.
The second one is actually kinda lame; this one came out of reading "Idiot's Guide to Javascript" and the Visual Quick Start "Javascript for the World Wide Web 2nd Edition." Actually, this is a frameset 'cuz I made a "lonely" that always has to be in a frameset. Take 2 is the left frame; try right clicking on a photo. Looking at the source code could be inspirational, though: there's a lot of stuff commented out that I did just to learn; like breaking out of frames, alerts on loading, etc.
Aha! I also found a good resoource online: http://javascript.internet.com/page-details/