A great pianist to look out for is Claudio Arrau, although not alive anymore his recordings are always very interesting and deep as well as being often intense, what's more he has the most beautiful tone I've ever heard. Good recordings of Arrau are the beethoven sonatas, look out for opus 111 on DVD you will never hear this piece played better or more movingly ever in my opinion, anything by Liszt, beethoven concertos 4 and 5 with Sir Colin Davis and the Brahms concerti as well. I would also recommend recordings by Richter, most notably Rachmaninoff 2nd concerto and the Tchaikovsky 1, there are also some stunning live performances of Scriabin Etudes etc. Emil Gilels is also another great past pianist to look for, his recordings of the Beethoven sonatas and the Brahms concerti are lengendary. Richter also made some excellent recordings or Debussy as did Michelangeli. Other CDs to look out for are the Naxos Historical series where you can find recordings of Rachmaninoff, Moseivitch, Horowitz etc. these are very interesting to hear, the sound quality isn't always great but the performances are incredible, so very different from the way a lot of pianists play today....