[KeynoteKen]

I once used this path to get things converted to a vector format.

Set up a new printer in Windows. I can't remember the exact steps, but you want the output to go to a postcript file instead of to a printer.

Then, you can take this .eps or .ps doc into almost any app on the mac (there's a short wait while it converts either one of those to PDF for use by the app).

That doesn't require any additional software BUT it does require you have access to add printers (which some companies don't allow).