He's right, that's about it for actives - Lundgrens are called EMG killers for a reason, though, and if you're looking for a pickup that's clear with an insanely high output, the Dimarzio D Activator is tons of fun.
I have EMG 707s in two CS Jacksons and a Lundgren M7 in another. The M7 is not, IMO, an EMG killer. It's a great pickup, but if you want the articulate sound on an active pickup you won't get it from the M7.
I have never seen a LiveWire for a 7-string, Wee Face. I'm still recommending the D-Activator, which I've played with and installed in my 6 - the level of detail in that pickup is unfuckingbelievable.