Congratulations on your gig.

Stereo is almost a must with the PSR3000. I recommend the Logitech Z-2200 if this is your only gig. The other Logitech has too many cables. I think that a three piece system is plenty. It will give you good sound, rich bass, and it's cheap.

If you are going to be doing more gigging, I would recommend a sturdier professional system, but it's going to be heavier and a lot more expensive.

Beakybird