Don't go for cheap HDMI cables. I got a free HDMI cable with my PS3, look dodgy as. When I plugged it in it doesn't work. I got so pissed off that I went out to buy a $99 HDMI cable (I know I got ripped off but my state of mind at that time was I HAVE to get my PS3 to work). I was told there are difference in HDMI cables as well, I never researched it but my philosophy is that you get what you pay for. If you don't have a spare HDMI connection, check to see if you have the connection for component cables (the RGB cable) that cable can handle the HD output like HDMI. Except you'll still need the audio cable if you're using the component cable. HDMI cables outputs both display and sound.

After you get your cables, you'll LOVE your PS3. Trust me. There was a BIG difference when I was using the RCA cables and my now HDMI cable.