I have tentative plans to learn the Bach Concerto for Oboe and Violin with a friend this fall. In fact, we sight-read it together over the weekend and I was reminded of how much I really like this piece.
This recording by Trevor Pinnock and the English Concert is lovely.
The second movement is particularly beautiful. (Although I must admit I love the second movement of his Concerto for Two Violins better... how could anyone not?)
The triplet-y bits in the third movement are as fun to play as they sound!