HDMI 1.3 necessary for my new system? Tried searching, still confused

[Higgs1]

Hello, I ended up ordering the Onkyo 7200 HTIB and it supports DTS Master Audio but i'm not sure if I need to upgrade my HDMI cables.

I will be using my PS3 & Motorola HD DVR Cable box via HDMI & my 360 via Optical cable and have older HDMI cables for both the ps3 & cable box.

I have been looking for some time now on the HDMI cables and how 1.3

New HD lossless audio formats: In addition to HDMI’s current ability to support high-bandwidth uncompressed digital audio and all currently-available compressed formats (such as Dolby® Digital and DTS®), HDMI 1.3 adds additional support for new lossless compressed digital audio formats Dolby TrueHD and DTS-HD Master Audio™.

So does that mean I will require the new 1.3 cables for my surround sound to work with the HD Audio?

I just want to make sure so I can order new cables before my system gets here on Wed. so I don't have to wait to have it all set up.

I'm sorry if i've asked something thats been gone through alot I'm just kinda confused & spent alot of money on my new system & want it to work to the best of its abilities.

Thanks