Hey tweist, thanks for the welcome. Just clicked the youtube link in your signature - 13 synchronized houses is absolutely awesome!
When I was working with Dasher, it was for my friends house; my place was too small at the time. Now I'm on about 1/2 acre and have enough room to put some displays in the yard.
While wireless is a cool option, I'm just thrilled the controllers can be daisy chained with cat 5 - that saves a lot of wires right there. With the old skool Dasher and a digital I/O card, I had to break out each circuit individually from a 50 pin header and wire the control signal to the optoisolator in the modded dimmer. 24 channels was quite enough using that method! You can put on a pretty good show with only 24 channels too, although it won't be as technical and intricate as with dozens of channels.
At least for this first year, I may purchase over 100 channels of REN hardware, but only utilize a third or so.
My sour experience with LED lighting is with rope lights. Very dim compared to conventional. I guess I should get samples from suppliers before I go buying a 150 ft. spool. Cost is a factor too, with LED rope lighting going for three times the cost of conventional.
Is there a particular vendor you guys use for commercial grade rope and string lights?