Jaspers

online or go china buy each one of them and hook up a set for yourself
harddisk karaoke 1.5TB: app. $1500
a set of wireless mic: app. $250
mic mixer: app. $200
karaoke amp (or any 5.1 stereo receiver is fine, denon, pioneer, yamaha): app. $700
speakers: a pair of BMG or china made loudspeakers for vocal usage is fine
lightings: app. $500