You can get away with white on a dark blue text--I design various print documents and have used it, but you do need to be careful that the background is solid and dark enough that the white pops out.

For a text that renders smaller but is clear, I like Garamond. I used to have one called Californian FB that also worked that way. If you line either of these up next to, for example, Times New Roman, all at 12 point, the other two are smaller, but still quite clear.

The top hit on Google for fonts is http://www.fonts.com/. Probably way more information than you need, but you can type in these names and get a look.

Be careful about downloading "free" font files. You can get a lot more than you bargained for. Check out some of the reviews or opinion sites before you go that route, if you have it in mind.

SRS