Including their set when opening for Arcade Fire last year at Madison Square Garden, all the way back to 1996 (!)
I would highly recommend this recording at Emo's from 2004 (in Austin I believe) - http://www.archive.org/details/spoon2004-12-04.flac16
Also this 2008 set from the Fillmore (in San Fransisco likely) - http://www.archive.org/details/spoon2008-09-22.flac16 (great version of Peace like a River)
These two recordings are almost canonical to me since I've listened to them so many times, also almost forgot that there are dozens upon dozens of Spoon sets archived on there in very good quality usually.
A whole year's worth of Spoon, what more could one ask for! Enjoy
http://www.archive.org/details/Spoon
Update!!! Britt Daniel also has a page, and is apparently quite supportive of the bootleg scene,
http://www.archive.org/details/BrittDaniel
I feel like a Phish fan or something