I use an IBM M1015 that's been flashed to IT mode so it's not in "Raid Card" mode any more and works pretty much like a standard sata card.
It is the same card as the LSI 9220 -8i which you may also find at affordable prices.
These can be found already flashed often in the $30-40 range. You can get the raid version of the card as well and just set the drive a
Don't forget to get a Sas cable.