Hi all,
This will be my first sound card purchase ever so go easy on me

.
I have finally finished building my computer and it will be used in order of importance for outputting music through me logitech 5.1 surround set, then films, then gaming once I get out of lazy mode and reapir my graphics card.
As I mainly concerned about audio which of these cards would you recommend me purchasing. I have done a lot of research and many different reviews have now left me totally confused for best option so have put a couple of cards below that I have looked at for my budget of £50. Grateful on any comments or recommendations. Some have newer audio chips than other, better SNR etc, more outputs.
The cards I need must be
PCI slot however.
Asus Xonar D1 <-- good snr
Asus Xonar DG <-- slight les snr but headphone amp
Auzentech X-Plosion 7.1 <--chip is older, less SNR but has a lot of outputs on card
X-fi Titanium sound blaster <-- not too familiar with creative cards any advice well taken for this brand. Seems to have it own x-fi brand chips.
Any advice on above or list of alternatives with pro/con will be well taken. Budget of £50 can be stretched as I would rather buy one I know will last me a few system generations though that will probably be hindred by fact I am needing PCI not PCIe but you know...