"...I've finally reached a point with system where I'm ready to start listening to music..."?? What does that mean??
If you are looking for good sounding jazz recordings, there are 100s of remastered CDs from Blue Note, Impulse, Columbia, Verve, Prestige, Riverside, ECM, and other labels that are easily available. JVC XRCDs are also a good bet (but I think most of them are out of print). You can go to your local record store (if you still have one in your area), or check Amazon and look for "used". You can even find new CDs under the "used" section, many of them well under $10.00.