Don’t scrimp here! Especially if your adding a home theater. You have to make sure there are adequate circuits to supply all the power you need. The last thing you want to do is have to break open walls to add new circuits after your basement is finished. Electrical is also a huge safety concern. It has to be done properly. That means no concealed electrical junction boxes, the proper loading of circuits, the proper number of outlets on each circuit, metal protectors on the studs (to protect the wires from screws and nails) and the proper securement of the wires with approved staples.