Equipment help

[ekco]

Hi,

I am looking for some suggestion/advice on the following equipments.

I am planning to get the PA1520 speaker set from http://www.accusound.com.au/PA_Series.html.

However, I am not sure which amp to get. I've read around, and many sites suggested getting approximately 1.6 times the RMS wattage (800W) of the speakers (for dance/trance). Is that a reasonable number, and is there any recommended amp for these speakers??

Most of the time, I'll be setting up karaoke parties, so I'll need a mixer as well (since I dont plan on looking for an amp+mixer builtin), thus anyone has any recommendation on a decent mixer? I am looking for a 3/4 mics mixer, since there wont be that many people singing at once.

Other time when not using these speakers for karaoke, I'll be using them to listen to trance.

Also, am I missing out on anything for this setup?