Post your Bach recommendations here!

I need more Bach on my iPod, but I'm utterly overwhelmed by the options available.

I'm looking for something that does for my brain what the Goldberg Variations does. Yesterday, while I was struggling with an particularly gruesome medical translation, my iPod serendipitously gave me the Goldberg Variations (Glenn Gould's 1981 version, if you're interested). The counterpoint just soothed my distraught brain and got me through the text. It was like my brain was enjoying a hot bath and a glass of wine and a massage. I need more music like that.

While I am aware of the historical context, I don't want anything that screams "Look at me, I belong in a church!" (played on the organ, sung by a choir, etc.) My negative associations with the church are just too strong. Also, I don't want anything that's so well-known it's become a cliche and can be reduced to a ringtone. For example, despite their contrapuntal virtues, I am completely immune to Jesu Joy of Man's Desiring, or Toccata and Fugue in D Minor. I'll take non-Bach recommendations too if you have some, but I do think it has to be Baroque counterpoint.

Recommendations of specific recordings would be great, but if you're not a recording geek I'll take specific pieces too.