Threre are a LOT of threads on this topic, in case you haven't already searched!
I loved my Aguilar Tone Hammer 500, and the EA Doubler was great, but I needed more wattage so I got an Acoustic Image head that goes to 800W at 4Ω, since I play 99% upright. The Carvin heads seem to get love among the loud slappy players, and Mike Arnopol extols the virtues of the Tecamp Puma 900. If I didn't have to get really loud sometimes, I'd probably buy another Tone Hammer 500.
For cabs, I love my Big E MAS85, and am acquiring an MAS46 which is supposed to go louder and lower, which will be good since I'm picking up a bit more electric work. There are three very long threads about the Big E stuff on the electric side. Also:
http://masoundworks.com/
I haven't tried the Greenboy Audio cabs other than the Crazy8 (which I loved), but some folks are gaga over the Fearless line, and the F212 seems to be blowing everybody who tries it away. Search here and on the electric side for Fearless and Fearful, and check out the Greenboy forum.
Other cab names that pop up that I have no experience with are Acme LowB, Bergentino, Aguilar.