I love fonts
I might be crazy, but I actually had to purchase a good collection of classic fonts in addition to the Adobe bundle for business purposes. Having a lot, I'm glad I got a Mac now because Linotype FontExplorer X is an excellent (and free) font manager for OS X (as soon as I got a Mac, I think they have a Windows version now). Anyway, you shouldn't delete the default fonts, but you should organize them by serif, sans serif, slab serif, monospaced, display, blackletter, decorative and script. Activate and deactivate the fonts when you need them and when you don't need them. What I do is store all the fonts in a font folder on my hard drive, then have them in my library. I can view them in my library, but it doesn't mean it'll be loaded when I fire up Photoshop, Illustrator, etc. If I browse through the library or my grouped folders and see something I like, I'll activate it.
As for a list of default fonts, there's a list on the Apple website that says what you can and what you cannot delete. Trust me, you don't want to delete any system fonts.
As for printing previewed fonts, I can't find an option on Font Explorer X, but they have a very good preview system on screen, imo.