Standard Web Fonts

Update

Please see Standard Web Fonts Revisited.

When choosing fonts for web pages I usually end up limiting myself to four or five (Verdana, Arial, Tahoma, Trebuchet MS). Why, you ask? To make sure that the majority of visitors to the web site are capable of viewing the site as intended.

Lately, however, I’ve found myself growing tired of the same old fonts. I need to spice things up (for myself as well as the visitors).

So, my question to you is… What are the standard fonts that are available to Windows, Unix/Linux and Mac users? What can I do to spice things up? What web-compatible fonts are you fond of at the moment?