Here are two more not to be missed:
Randy Weston Trio with Cecil Payne: With These Hands
This one contains the original version of "Little Niles," and it's still my favorite. Even if you have the Mosaic Select, this one is a worthwhile addition. Great sound, too.
Elmo Hope Trio & Sextet: Homecoming!
The trio tracks in particular, with Percy Heath and Philly Joe Jones, show just how much Hope was a musical peer of Monk, Powell, and Nichols. Harmonically rich and surprising, Hope's writing has its own individual flare. Again, great sound.