Hi all. i currently own a rotel preamp rc972. also a rotel power amp rb981. with an arcam cd192. and a pair of shahinian arcs. im more than happy with the sound but im thinking of using a computer as a source. at present i would have to burn tracks onto a disc then play that disc on the cd player. but im told that if you play straight from the hard drive its better. is this true also if i were buying a computer for this purpose what would i buy big external hard drive etc do i need a dac or do i buy a sound card help needed with this cheers oceanobsessionl