Watch the Beggars - Rhythm online guitar lesson by Jeff Scheetz from Rock Solid
One of the cool things about the solo groove of this song is that it is sparse but punchy. The "stabs" of chords make it pump a little bit. Since the solo of this one jumps into "D", when the song is in "E", that also adds a bit of shifting and makes the simple chords have a bit more impact.
Hendrix and Johnny Winter both really inspire me to do things that are raw and simple - it's all about the feel man!