Older films

[Tarl]

Helo Folks......I'm new to this forum and Blu Ray Discs but not to HT and the love for movies. Currently I own 143 VHS tapes and 604 DVDs. Just starting out with the BD format and so far I have my collection up to 19. I realised that newer films would look and sound great on this format and I'm loving it! What really is blowing me away are some of the older films I have viewed. 2001, Full Metal Jacket and A Clockwork Orange are the best transers I have ever seen of these movies (and I saw them all at theaters back when they were first originally released). I also hear that Casablanca is a real treat. I swore that I would not replace every DVD in my collection with it's BD counterpart.....this may turn out to be a hard promise to keep. So what do you folks recommend as far as older (pre 1990) movies go on Blu Ray?