it possible to get full sorround sound with this setup? please help me?

You need an HDMI; Optical or SPDIF coax connection in order to get surround converting RCA to one of those is not going to cut it because the signal will still only be stereo....in order for surround to take place the signal must remain in the digital realm until converted by either a DTS or Dolby processor... computer surround is created by a surround sound card inside the computer; but usually it is not DTS nor Dolby compliant so its a different type signal and a different process for getting surround...also your source must also have the codec...if the TV signal or movie only has stereo you will not get a digital surround signal...also you cannot force feed a Dolby or DTS digital signal it has to be there encoded by the original source...you can use Dolby Prologic or Neo 6 to create a pseudo surround signal but its not a digital surround signal...and may or may not sound realistic....

Ok - computer speakers tend to NOT work with whole room gear. It's kind of like trying to use a battery powered personal fan to cool a room.

The device below, combined with some 3.5 mm male-to-male wires will mimic the 3 jacks found on a computer sound card to feed computer speakers. Yes - it will be DD5.1 surround sound:

http://www.amazon.com/dp/B0058FS342/ref=wl_it_dp_o...