The Ben Kweller post got me listening to other acoustic versions of my favorite songs. Here are some good ones for your listening pleasure. I always enjoy it when bands do acoustic versions; it is one of my favorite things in the whole world. Also make sure to check out the Flaming Lips post to get an amazing acoustic version of "Do You Realize??"
Yeah Yeah Yeahs - Maps (Acoustic)
Ambulance Ltd - Heavy Lifting (Acoustic)
Rogue Wave - Every Moment (Acoustic)