+1 for Slingbox
I was lucky enough to buy it during a period when they offered a free key for the mobile player when you purchased the box. They have new versions of the box now.
Plus you can use Slingbox with other PCs. I use it on my laptop, my 700wx and I have a friend in South America that logs in every now and then to watch Heroes and other programs (not all at once of course).
