Better PSU for the same price before rebate:
XFX Pro 550W Core Edition 80Plus Bronze $70 ($15 rebate, $6 shipping)http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013
This is also better:
Antec HCG 620W 80Plus Bronze $60http://www.newegg.com/Product/Product.aspx?Item=N82E16817371048
Uses virtually the same internal design as the XFX.
If you really want a modular PSU then I think I would take this before the BP550:
Rosewill Hive 550W 80Plus Bronze Modular $70http://www.newegg.com/Product/Product.aspx?Item=N82E16817182131
Uses the same internal design as the OCZ ZS Series 550W, which has been positively reviewed (as have the other members of that series).
Or the OCZ ModXStream Pro 600W $70 ($25 rebate)http://us.ncix.com/products/?sku=33041&vpn=OCZ600MXSP&manufacture=OCZ%20Technology&promoid=1029