Mac and Win formats available. Font Bureau Home of some of the best commercial fonts. They have every style of font imaginable. Excellent quality and available in all formats. Font Diner - Adorable retro style fonts.
Fonts are very inexpensive but also very good quality.
Tons of neat freeware including the very famous fontdinerdotcom sparkly font. Good character sets. Mac and Win formats available. Font Funk Factory - Adorable website with fun graphics. Lots of pixely bmp fonts available in Win format.