First..... identify what display card do u hv? what are the output connection available? DVI, S-Video or VGA? And what are the video input available for your plasma? second, connect them with necessary cable, you may need to tune your display setting for you to get the best picture quality..
for sound, again what sound card do u hv? if you hv any digital output available, just hook it to the denon receiver and enjoy the DD or DTS.
Software, get the windvd or power dvd...
hope help...
btw, i just wonder why u copy ur dvd to server? what is your server storage capacity?