A few off the top of my head:
10-8-02 NY with Chelsea alts
3-3-04 Dublin with Washington Square alts
8-19-02 Amsterdam with Its Alright alts (think this is is my favorite)
3-16-08 NY - Xmas story, its Alright, some other stuff
5-10-09 Glasgow - Lights on Broadway
11-16-04 NY - I like this version of the Xmas story... Adam is drunk off his ass and sort of lost and really feeling it
Pale Blue Eyes needs to be in there somewhere, although I have no strong feelings on a performance. The recent one, 5-27-09 (Nottingham), was pretty good.
There's some good ones from fall 02... I know there's one with RTS alts (maybe Nashville? 10-25-02?).
And a few pulled from looking at the Anna Begins alts database:
10-19-02 Kent (Oh My Sweet Carolina!)
7-10-01 (some rare stuff, Xmas, Boom Boom)
7-18-01 Chateau Ste Michelle (Xmas -> Round Here)
And if we're going to start doing these... can I suggest we do Rain King next?
EDIT: Added locations