I love old school wrestling and i've been meaning to start watching again.
They actually released some pretty great anthologies the last couple years. They have Wrestlemania, Royal Rumble, and SummerSlam sets that have the entire PPV broadcasts. Netflix has the Wrestlemania and Royal Rumble sets. The Wrestlemania one has I-2004, Royal Rumble has '88-'07. They've also released a lot of wrestler-specific DVDs that have some great matches.
I pretty much stopped paying attention a few years ago because it was too depressing watch them trot out the broken down old stars but I definitely have a soft spot for the older stuff. Undertaker better win, I don't see any point in him losing now.