FontLister 3.x - Win 95/98
Gives a great view of all your installed & uninstalled fonts with the name and each character. Preview a font in any point size or colour with the back ground colour of your choosing. Print out all the fonts or write text with a chosen font and then print, compare fonts, turn Wordwrap on and off. This is the app I always use.

MyFonts 5.2 - Win95/98/NT/ME/ W2K, XP, NT4
This shareware app lets you preview and print fonts, even if not installed, select point sizes & what the specimen sample will say. Manages fonts individually or in groups, eliminates duplicate fonts & fully supports both TrueType and Postscript fonts.

FontSpec 7.2 - Win95/98/NT
This shareware app does the same things as MyFonts 5.2 but is only for Win95, 98, and NT.

TTF Converter  or  FontHopper
These apps are for you Mac users who mail me & whine about none of the fonts being in your format... I have no clue how you use them, only that they convert from TTF to, uhm, whatever your Mac font format is.

Font Creator 4.1
High Logic makes a decent font making program, which is also very reasonably priced if you decide to register it after trying out their free trial offer.

FontLabs Ltd.
FontLabs makes incredibly expensive (i'm being polite, it's actually quite overpriced) software but they do offer free trial downloads, in case you're interested in trying your hand at making fonts.

Softy Font Editor
Softy is a truetype and .fon font editor. It can both modify an existing font and create one from scratch - has all the basic tools necessary for this. Among them glyph and contour copying/mapping, inserting points to curves, changing straight lines to curves etc. Doesn't compare badly to several high-cost commercial editors, tho' it won't do hinting, but not all commercial ones support this either. Word of warning: this version may be a bit buggy, so save your work frequently.