Get all the Bird you can afford. Period. Bird live is life changing, particularly the Live Performances on Savoy when he was at the absolute height of his powers.
http://www.amazon.com/Complete-Live-Performances-Savoy-1947-Oct/dp/B00000DC2I/ref=sr_1_1?ie=UTF8&qid=1355783562&sr=8-1&keywords=charlie+parker+complete+live+performances+on+savoy
I laughed at that statement ... not scoffed, but genuinely thought it was funny. Dolphy was never fully "out" though ... always on the edge, but as Parkeriana aptly demonstrates, he could play the changes.