Novice question about Internet Downloading.

I am currently using a Pioneer Universal Player(DV-58AV) with Space Tech Lab DAC, STL Headphone Amp, and Grado RS-1 Headphones. I am trying to gather information about Music Servers and downloading High Resolution off of the Internet. I am also interested in ripping my current CD collection onto Music Server Storage. I don't currently own my own personal Computer or I-pod, I am typing this via a Cybercafe account, not my Computer. Is there currently any combination of Computer/Music Server that can provide for Downloading of 24-bit/96kHz, and 24-bit/196kHz recordings off of the Internet-then store them as WAV files in a Music Server-then provide for Digital Balanced Output to a particular DAC for playback? I keep on hearing of WebSites that provide these High Resolution Recordings on the Internet, but USB will not carry these High Resolution recordings to an external Music Server. Is there a limitation on storing these type of recordings on the computers hard-drive alone? How are these High Resolution Recordings being Downloaded, Stored, and played back without using the Computers internal DAC or internal circuitry? Would it be better to modify a Computer with a high quality Balanced Digital Output to feed these Recordings to an external DAC? These are the questions that I need answered before I go the Music Server route. I don't want to end up like so many SACD Victims, spending thousands on the Hardware while being promised that tons of the Software is just around the corner. Please tell me that it wont end up being the same with Downloading these Higher Resolution Recordings.