DTS HD Dolby True HD in Bluray Playback

My bluray rom came with cyberlinks most basic of bluray playback software. It is cyberlink PowerDVD bluray edition 7.3 with 2 ch stereo. I would like to get full surround sound, but I am not fond of spending $100 on the upgrade to Power DVD ultra. So I am wondering can I buy a higher end sound card that does onboard decoding of DTS HD and dolby TrueHD signals. Right now I have a Creative x-Fi extreme Pci-E sound card. So do I have to have power DVD ultra no matter what hardware I have to get the better surround sound formats. Some of the blurays that have dolby digital sound I get all 5.1 channels producing sound. Suggestions would be appreciated. Other hardware list if it helps

q6600
Asus P5KPL-VM mobo uatx
4GB of pc5400
evga 9800gtx
Creative x-fi extreme audio PCI-E
light-scribe DVD writer
lite-on BD rom

all in a mini P180 case

For now - if you just want to get thatfull sound working without truly maximum quality, try VLC Media Player. It's free and it plays anything at any quality as long as the file has the options for it. Also you can adjust pretty much anything on the video. [url=http://www.videolan.org/vlc/][/url] enjoy!