Kadlec, there are some great suggestions here. I agree with everything that "the Professor" has posted. However some posts are out of place. This is just the tip of the iceburg, there are thousands more from great artists. For the most part every jazz recording prior to 1970 is fantastic, and there are many post 1970 recording that are great(but not as abundent). I know...there are a handful of crummy recordings, but the percentage of beautiful to crummy ones is unbelievable as compared to todays pop&jazz recordings. I could add many other, but I think you have enough recommendations here, so I'm not going to add...Oh I guess I will, but just one Ahmad Jamal's "Poinciana", I don't believe that anyone mentioned Ahmad Jamal. He may not be as seminal as Armstrong, Diz, Brubeck, Monk, or Miles, but he's still very important, and also has an easy style to follow. Another Booker Erving, any of the records titled with the word "book" in it. Eric Dolphy would be another, Johnny Griffin "Blowin Sessions". Desmod, Hank Mobley, Joe Henderson, Grant Green, you see it just goes on forever. Good luck!!
Kiwi
Also, I'm sure there are many great jazz radio stations throughout the country...KCSM out of San Mateo Community College is one of them. You can catch it through the internet.