David - personally their early albums High N' Dry and Pyromania are their greatest albums, very AC/DC and raw and good rock and roll.

Hysteria is their Slippery When Wet, most popular and spawned their hits 'Animal', 'Pour Some Sugar On Me', 'Hysteria' and more.

Try their 2004 Best Of, got all the hits on it and I'm sure you'll enjoy it, it doesn't contain any of their early stuff I love (except for a couple songs 'Photograph' and 'Rock Of Ages') but still a good compilation.

Hope that helps.

Oh and for the record, I really like Songs From The Sparkle Lounge.