I posted this question on several other boards and finally got an answer. It appears that today, you are not able to connect your PC to your HT with a wireless network (e.g. 802.11a, b or g), but soon.
But, I did find something that DOES WORK. There are several products on the market that work over 2.4Ghz and transmit audio & video that do work. Here are the links to two of them:
$79.99 First Alert 2.4GHz Wireless Video Sender
http://www.bestbuy.com/Detail.asp?m=...at=&e=11205400
$69.99 DVD Anywhere by X10
http://www.x10.com/products/x10_vk53a.htm
I just picked up the First Alert from Best Buy and it works great. I had some interference from my cordless phone at first, but I changes the video system to another channel and now it works perfectly.