[dw0rm]

For css -webkit-font-smoothing you may try between "antialiased" and "subpixel-antialiased", then there is css text-rendering: optimizeLegibility.

Also you should notice a bug in Safari for OS X that turns off antialiasing: http://seanmcb.com/typekit/webkit-antialiasing-test.html

Google has free webfonts that are already prepared for including in different browsers, you may consider them: http://www.google.com/webfonts, also there is http://www.kernest.com/.

FontSquirrel was already mentioned in this thread.

[dw0rm]

Also, If you use css 3d transform in Safari or Chrome under Mac OS, then absolute or relative positioned text will be badly antialiased. To fix that you need to explicitly set background color for these elements.