I have an EMX312SC 300w per side and was running it into two Yamaha S115V's. I wanted more power and size, so I bought a Yamaha P7000S power amp and two S112V's for monitors. 1100w per pair, with the 12 channel mixer.
If I was going to recommend a PA to you I'd either say Yamaha or the Yorkville Excursion system, the Excursion would be the way I'd like to go if I started over, because it's very compact yet powerful, but I don't think it's as available to you in the states, or nearly as cheap. I would look into the EMX312SC package they have on musiciansfriend, or if you feel you want a bit bigger, get the 500w per side powered mixer they have with more channels with those cabs.
http://www.musiciansfriend.com/produ...age?sku=630195