Does anyone know of a calendar/scheduler similar to Ical that is compatible with a pc?

I use Ical because it has a very good repeat scheduler which can repeat entries in a way suited to my business.

Problem is the laptop I have access to is a pc but my main office computer is a G4/400 running OSX 10.2.5. I want to be able to make changes out on the road and upload to the G4 when I get back.

Brett Curtis
Master Window Cleaners
Perth, Western Australia
[EMAIL PROTECTED]
www.masterwindowcleaners.com