I wouldn't go with the kicker because you aren't going to get even close to enough power since it is a 2 channel amp. The alpine would be good but your still going to be underpowering the subs by about 200w so in that case I would stick with the Phoenix Gold amp I showed you above since it is a really good price.
If I were going to buy an amp though I would go with this Kenwood eXcelon the eXcelon amps are their high quality ones and they really deliver the stated power from what I have seen. I have the smaller (600w rms @2ohm) version of this one and I had it connected to an older type r and it pounded:
http://www.sonicelectronix.com/item_8571_Kenwood+eXcelon+KAC-X1R.html#specs
It really comes down to what you want since it's going in your car but I would stick with the Alpine, Phoenix Gold or Kenwood eXcelon and if you find a Kicker mono amp in that price range with 1000w RMS it wouldn't be a bad choice either.