If you want more live funk I would recommend two live P-Funk albums.  One is
Live and Kickin' which is a collection of recordings from P-Funk's recent tour. 
The other is Live at the Beverly Theater, which was recorded in the early
eighties.  Both are P-Funk at there best.  As far as non-live old school '70s
funk I recommend picking up Funkadelic-One Nation Under a Groove and Cosmic
Slop.  Herbie Hancock also has released some great funk albums that are more
heavy on the Jazz like Secrets and Headhunters.  I also recommend picking up 
greatest hits from the Ohio Players, Kool and the Gang, and Bootsy Collins. 
Finally I highly recommend the 25th Anniversary reissue of Curtis Mayfield's
Superfly soundtrack.
One Nation Under a Groove, gettin' down just for the funk of it
Nate