TrueType or PostScript?

Hi all,
Im going to be buying a font, I would like to know what are the differences between TrueType and PostScript? (Want to know for which I should buy a license.)

Thanks!
-Mike

Simple tip:
http://www.buyfonts.com/truetype.htm


Technical and indepth details:
http://www.fontsite.com/Pages/Features/T1vsTTa.html


I hope that helps. :)
Regards,
Venio

Thanks for clearing it up. I now understand the difference.


Asked some friends and ended up getting the TrueType, dont think it will make a difference for what Im doing.

Thank You,
-Mike