We use Gator professional DJ consoles, built especially for mobile DJs. Besides being visually attractive, they contain the mixer, dual CD player, iBook laptop, light controller, wireless mic, and BBE processor. Everything is pre wired with no unsightly wires exposed.
We utilize Macbooks that run MegaSeg DJ software. The Mac platform is extremely stable. The speed and ease in cuing and playing music versus CDs is amazing. We do carry CDs as a backup source just in case of computer failure. You always need a Plan B, just in case. And, if we have Internet at your venue, we can download on the stop if we need a song.
We use Audio Technica UHF series wireless microphones and always carry a back up corded mic. We also use a BBE Sonic Maximizer in each system which makes the music come alive. They make a difference in the quality of all songs.