Back with another round of bone-head questions about TMCC

are you going to run conventional?

the following is for command control only, not conventional.

hook up transformer like normal, hook up wire from tmcc to outside rail. run trains.

I would run power from the transformer to each loop at least. That should give you better power distribution. And the TMCC U terminal to the outside rail. The TMCC power supply is to be plugged into a grounded outlet. Read the instructions on the CC switches but basically you hold the programming button until the lantern LED blinks and press SW on your hand held controller, press in the address you want, and then press SET. The lantern should go solidly on. That's about it... 

The power brick that came with the GW-180 can be used with the control box it came with, or the PowerMaster.  You'll need to pick which one you want to use.  One can only be controlled by hand, and the other only from the Cab-1 remote.

Can I use the both and run one conventional and one CC?

If you pigtail/split the output of the 180 brick, one to the command track & one to the GW controller for the conventional track, then yes.

You will have to isolate/insulate the center rail connection of the two loops at the crossover switches, though, and pick which loop you want to run which way.