Wot sort of price range you looking at for this size system?Flux said:2-way crossover (bass/mid-tops)
2 x 250W bass scoops
2 x 250W trapesoidal mid-tops
2 x 200W per channel amps (it's advisable to get lower amp output that cone rating for obvious reasons)
Or, you could use a 3-way crossover (bass/mids/tops), but that means extra boxes and amps for the tops. This is more versatile though.
Hope this helps,