Can you add a text box to a gallery?

Title says it all.

I would like to be able to add text with some of my images. For example, if a shot an assignment, it would be nice to have a brief description of what the assignment was. The best solution I have as of now is just to make the text in photoshop, save it, and upload it. This brings up some issues for resolution and matching fonts. Is there a better way?