[soundlight]

I'd second the computer playback option. My favorite combo is Qlab (only runs on mac) and an Echo Audiofire interface (pick the one with the number of outputs you need for your space, we have an Audiofire 12 in each venue here). SFX from Stage Research and Sound Cue System are both good options if you're looking for a PC based program. I should probably add that I'm normally a PC user - but the ease, power, and price of Qlab made me take that route. I still use a PC for everything else - but for show control, I use a mac. They have very powerful add-ons such as the pro audio, pro video, and pro midi that allow you to really take it to the next level, but only in the respects that you need to for your application.