connect pc to tv wirelessly

Connect my PC wirelessly to the TV?
I am looking for a way to connect my PC wirelessly to your TV. Television is only 15ish feet away, but the room also has a wi-fi router (802.11 – I think) so it can not interfere. I want the video (which is on the screen) and sound to be sent. When you send the sound, you should disable or have a way to disable sound to games of PC speakers. But I do not want to have to connect release cables when I want to use. (I cannot physically), but I have no problem changing the software configuration. The sound card is a Creative Sound Blaster X-Fi Fatal1ty FPS 7.1 Channel and my video card is an EVGA-P2-N821-AR GeForce 8800GTS 640MB 640 320-bit GDDR3 PCI Express x16 HDCP Ready SLI Supported (SLI isn't in use, but this card can be configured for two monitors.) I have also 4gRAM, XP Pro, AMD CPU 3.x. I am looking for the best solution w / the best quality but not the cheapest should be wireless. MTIA.
http://www.vfmstore.com/tr200824.htm is what you want, but you can find cheaper.
Is there a wireless way to connect my computer to my tv?
