Originally Posted by Thomas
So many great suggestions, just a few more that might be worth your time if you happen upon these:
Beethoven Sonatas - Schnabel (older recordings, forgive the sound quality)
Shostakovich - Symphony 5 - Bernstein
Shostakovich - Symphony 12 - Haitink
Prokofiev - Concerto 3 - Argerich
Brahms - Double Concerto - Rostropovich / Oistrakh
Prokofiev - Peter and the Wolf - Ormandy / Bowie
Tchaikovsky - Nutcracker - Gergiev (complete) or Ormandy (highlights)
Naxos has done a wonderful job with the Schnabel recordings, given the source (and they're a great price too).
Speaking of mono recordings, I like my Janis Prokofiev 3rd, in glorious mono on Mercury LP ( or here on CD for you modern folks: http://www.hbdirect.com/album_detail.php?pid=54009
As much as I love Brahms, I've never been able to wrap my arms around the double concerto.