To Unix based users: Remote x-windows on Mac OS X

Well, I posted this on iMac forum as I was getting my first Mac. But it really is a question on Mac OS X, So if anyone has an idea, please do reply. I appreciate your help. Thank you.

Folks,
I would be receiving my first Mac (iMac 17" intel) today. The box is in the fedex vehicle. One of the few things I wanted to try was this. I have a unix background and have worked on Solaris, UX, AIX, Linux etc., On all those, I used to remotely connect to those servers from my Windows desktop, using a X-window client like Hummingbird Exceed. I know Mac is based off BSD and that it has X11. I want to know if anyone has tried this - to remotely connect to Mac from Windows using an X-window client. Any hint/help will be greatly appreciated. If I can do this, then my HP laptop is as good as a Mac itself, since I would be able to run all the Mac programs remotely.

Thanks
Dinesh

Arrived yet to unpack intel iMac 17" Mac OS X (10.4.4)