Yahoo Calendar - any non-Outlook program for sync?

[Joey]

Hi,

I am a Yahoo calendar user (for my personal calendar) and use Outlook's
calendar for business. I am searching for a 3rd party calendar program that
can be synched with Yahoo, because I do not want to enter my personal Yahoo
calendar into Outlook.
With Intellisync software I can easily sync my Yahoo calendar with Outlook
(and Palm and Lotus - but I do not have these), but since I prefer to keep
my Outlook calendar for business purposes only, I would rather use an
application for Yahoo only.

Any ideas anyone?

Thanks,

Joey