Either the 990/7075 or 990/7125 will give you:

• More power/headroom
  
  Two extra channels for future options: bi-amping your mains, stereo zone elsewhere, the unexpected 7.1/7.2 fever
  
  The 990 combos have a sonic performance that rivals much more expensive units

Assuming the BA specs are correct with regard to sensitivity (93dB @ 1 watt), you wouldn't need 200 wpc unless your planning to have 'weekend dance club' on a regular basis. If you can swing the extra $200 (you've checked B-stock?), the 7125 will be worth it.