Sorry if this is the wrong forum, I was not sure exactly where to post this...

Here is my question, I need to purchase a font:

http://www.linotype.com/8565/trajanregular-font.html

but i don't know the difference between, "open type" vs "windows truetype" vs "windows postscript" vs "macintosh postscript".

In the end i need the font so that it will work in both mac and pc based art programs. Is th "open type" the correct one?

also, if someone has the file and would be kind enough to email me it... that would be awesome as well..

=)