I was fortunate to see Spirit Assembly in Atlanta back in the mid 90's with local heroes Car Vs. Driver. In my opinion they were one of the bands that truly defined 'emo' and their records and shows were amazing. As James puts it on his blog:
No matter what show they played, they would decisively steal it from every other band that played with. Duelling yelling/screaming vocals, heavy rhythmic (pretty much all rhythm) song structures, such passionate performances. These guys were the best. They could level any house or VFW hall show out there, and almost never played clubs.
Luckily I grabbed a few pictures of them playing at Somber Reptile, apparently a rare 'club' show, where they played with Car Vs. Driver (pics to come of them later too).
And a few live videos, that I did not take: