I bought the Disney castle kit from Brickstuff. They are awesome with support and give you instructions on adding the lighting after you've built the kit. It's a bit of a pain separating bricks to place wires but the end result is amazing. Now, I really want that Ghostbusters HQ.Thats cool. Have you seen this?
Brickstuff Lighting Kit for the LEGO® Ghostbusters Firehouse Headquarters
Our largest kit ever! The Ghostbusters Firehouse HQ is one of the largest LEGO® sets, so we had to create our biggest, most deluxe lighting kit to date to bring it to life.www.brickstuff.com
I'm waiting for them to come out with one for the star destroyer. The one for the Falcon is cool.