I can do most of those things cheaper for you.
Behringer SX2442FX Mixer #638005 - $499.99 $439.99
1 Behringer A500 Monitor Amp #480780 - $199.99
1 Behringer EP2500 Main Amp (Already Have)
1 Behringer EP4000 Sub Amp #582002 - $349.99 $314.95
1 Behringer MDX4600 Comp/Limiter #182474 - $129.99 $121.99
1 Behringer CX3400 Crossover #182464 - $129.99 $123.95
1 Behringer FBQ3102 Equalizer #182487 - $129.99 $121.99
2 Furman M-8LX Power Conditioner #181046 - $179.90 $74.95
All the cables and connections you need:
http://stores.ebay.com/AUDIOSAVINGS-ELECTRONICS-SUPERSTORE_Cables-Accessories_W0QQ_dmdZ2QQ_fsubZ1704269018QQ_sasiZ1QQ_sidZ116576208QQ_stickyZ1QQ_trksidZp4634Q2ec0Q2em14QQ_vcZ1?_sop=2&_sc=1
Rack Cases:
http://stores.ebay.com/AUDIOSAVINGS-ELECTRONICS-SUPERSTORE_Rack-Cases_W0QQ_dmdZ2QQ_fsubZ2033119018QQ_sasiZ1QQ_sidZ116576208QQ_sopZ1QQ_trksidZp4634Q2ec0Q2em322QQ_vcZ1
Monitors:
http://stores.ebay.com/AUDIOSAVINGS-ELECTRONICS-SUPERSTORE_Speakers-Monitors_W0QQ_dmdZ2QQ_fsubZ1704256018QQ_sasiZ1QQ_sidZ116576208QQ_sopZ1QQ_trksidZp4634Q2ec0Q2em322QQ_vcZ1
Subs:
http://stores.ebay.com/AUDIOSAVINGS-ELECTRONICS-SUPERSTORE_Subwoofers_W0QQ_dmdZ2QQ_fsubZ1704257018QQ_sasiZ1QQ_sidZ116576208QQ_sopZ1QQ_trksidZp4634Q2ec0Q2em322QQ_vcZ1
Im pretty sure you can get cheaper alternatives that sound as good, if not better. take a look .