Need advice ASAP before purchasing sound system for fitness studio...

[karlasenergy]

I go tot he experts with my question. So, forgive me for the little I know about sound systems. I had a self contained unit that was given to me and I was able to connect to speakers to it, my ipod and my wireless mic. The unit is an old wooden boxed n speaker but it has been great to me. Is dying tho and I want to get something before it does. I have to bose speakers overhead connected to the wall. I was advised to get a mixer and a set of speakers to go on stand that I can connect to as well as connect my ipod and the other speakers I have already. Is this good advice Please help ASAP.

[Polygon]

what kind of music will you be playing?
What kind of price range are you looking at when you say "speakers"
What kind of speakers do you want (floorstanders, studio monitors, stage monitors, PA...)