Don:
Simmers Paint Shop is a great source for many usable and freely-downloadable fonts:
http://www.simmerspaintshop.com/forums/downloads.php?do=cat&id=2
They also have quite a few downloads for various markings and national insignia (though many/most are in Photoshop's PSD format).
I would advise having one's antivirus/antimalware software operating for downloading -- though I've never found anything even remotely hinky in the site's downloadable files themselves, I've occasionally found something trying to "sneak through" along with their files.