At home, I run my CX3 into speakeasy clasic tube preamp then into a homemade 145type leslie.
My custom leslie stats are:
Leslie 145 configuration, made of pine.
100w bridged Stewart PA-50B amp
300w max 12" speaker
I just got the lower rotor in yesterday, so I have yet to install that and the motors.
Through this setup, I was surprised how close it sounds to a real B3/Leslie setup. The only thing that I feel is missing is a little more highs, which I can adjust through my organ, but the sound is really warm and full...and this is with the back cover off too! The wooden cabinet makes a BIG difference, it sounds totally different, when I push it though the peavy bass amp at church.
Once I get the lower rotor installed, I'm going to move the leslie that to the chapel and leave it there. I'm making an in-bench leslie that I'll use from home. It'll be powered by a 40watt amp, and since I took a peek at the parts within the preamp, I can now make my own with parts from radio shack. I'm tempted to install it directly into the organ, so I don't have to build two.
Anyone that plays organ through a clone, should try that speakeasy preamp, they're not exactly cheap, but they do make the organ sound ALOT better!
If you play keys, they also have one for keyboards that make the pianos sound a little warmer and not as crisp, when you go through an amp. The trick is in the tube.
I'll upload pics of my leslie later.