It would be really cool to be able to use multiple images with this block. For example, if you are using this to view images in a portfolio, when you click on the image to expand it, one could have the option to click "Previous" and "Next" for alternate images.

Example: http://www.huddletogether.com/projects/lightbox2/...

See "Images in a set".

Also, it would be nice to have the option to add a html "title" tag that says, "Click to expand" or thereabouts.

Otherwise, this is an excellent block. Definitely the one I use most frequently on my site. Thanks Remo, as always!