Umphrey's McGhee

Listened to "The London Sessions" last night over at a friend's house. Acoustic songs recorded in one day at Abbey Road with a lot of excellent musicianship. I particularly liked the song "Cut The Cable". I want to explore more form this band Anyone familiar with their catalogue and the best point to start?
They are good. I'll check that one out. A couple other bands you may be interested in:
Stringcheese Incident

I saw moe. three weeks ago live. Great band. 
More to discover