You can download the borg from my site. Just click on the address at the bottom of my signature. The Borg were set up to be aggressive, but I think the AI needs some help. I orignially got the borg from Warp_nines site. I have a link to his site in my links page. You could always reset up the borg to be really BA's if you wish. I have not worked on them that much. I have plans to tweak them both in the AI department as well as in the ship sets.
But they do offer a nice balance, and have a good speech file. I highly recommend them.
------------------
"We've made too many compromises already, too many retreats! They invade our space and we fall back -- they assimilate entire worlds and we fall back! Not again! The line must be drawn here -- this far, no further! And I will make them pay for what they've done!" -- Patric Stewart as Captain Picard
UCP/TCO Ship Yards