Karaoke Forums

Hey y'all, I'm new to the site. I recently bought a PA system with a mixer, amp, and a set of nice speakers. It's not extremely high quality, all together it cost about $2,000. I'm not really using it commercially, I got it for the back yard and I also use it for fundraisers around the community. I am interested in getting some karaoke equipment and I'm not really sure where to start. I would prefer a hard drive with a lot of songs preloaded onto it. I don't want to carry around a million CDs. I just don't know where to get this or what else I need to go along with it.