[project86]

Not sure how much your budget is increasing, but for $350/pair shipped the Octet Matrix DE7 is an incredibly nice speaker. See review in my sig if you are interested. Combined with the Dayton sub you'd be spending about $500 total for a killer setup. I haven't heard the newest Dayton sub-120 but the older ones were very solid. 
 
 

 

[WarriorAnt]

The superzero's are not hard to drive.