Content Distribution at home = Wireless solutions?

Archived from groups: alt.tv.tech.hdtv (More info?)

I want to accomplish most, if not all of the following at home:
I already have Comcast HD service and high-speed Internet.

1) Purchase a Media Center PC (Windows XP Media) and use it as the main
multimedia content server for the home.
2) Record the content from my Motorola 6208 DVR to the new multimedia PC
(probably Sony RA920G Series or Alienware unit). This 6208 is hooked up to
a Sony HDTV via DVI cable.
3) Distribute the audio & video content from the new multimedia PC to 3
TV's (one is Sony HD 34" CRT and the other 2 are analog TV's). This is in a
split level home with the new multimedia PC in the lower level with the HDTV
in the next room.

Can I successfully distribute the video and audio wirelessly and with what
unit. The Comcast home network unit is a Lynksys Wireless G Cable Gateway.
What will I need as receiving devices on the other end(s)?

Jim