HDTV and my PC

so.. I had this GENIOUS idea -

instead of playing my PC games on this little 17inch moniitor I have... Why not play it on my HDTV in my basement? itd be cooler, and a lot bigger :D

so, my question is - is there anything I need to know about setting up my HDTV to my PC? I have an 8800GTS and i have a 2005 or 2006 Sony Bravia, if such information is required. I have VGA inputs, HDMI, basiically everything. I'd just like to know if there are some precatuions I should take or if tehres something I need to do to my PC before hooking up y TV to it. I would rather not screw up either :)