The SR-71 is probably the greatest leap forward in aviation history since the wright brothers. It's development spawned so many other creations. Sled Driver is the one SR-71 book I still want. I have several. I have lived a few minutes away from tail number 968 at the VA Aviation Museum for five years.
I attended an annual SR-71 forum there in 2008 when Blair Bozek was a guest speaker. Bozek was the RSO on board the last Blackbird to be lost due to mechanical failure in '89, number 974. In case you were wondering what one who has gone over 3 and a half times the speed of sound drives, the answer would be a new BMW M3.
Here's one of my favorite pilot stories.