After a lot of research here, where people said for most things I would not notice a difference between SM951 and 850 EVO, and after seeing how fast 850 PRO is on my 2012 MBP (very happy with it), I decided to just get a 1TB 850 EVO for $360 since that way I could fit a lot more files onto the SSD compared to what I'd get if I bought SM951 and for cheaper than a $500 960GB Kensington HyperX Predator. I also figured that if this aging Mac Pro ever dies, then if my SSD is SATA, I can more easily hook it up to any computer to get files off of it. However now I kinda need a SATA 3 card. I saw Fry's has some SIIG options but they don't list OS X as compatible. There's a cheap 2-port Syba option there, but it got bad reviews, and I figure if I'm getting one, I might as well go for something that has both SATA and eSATA. The only threads I could find on here were from awhile back, so hey, what's the best option nowadays? Should any old card work? Is there one that supports RAID via the Mac Pro's "RAID" slot at all?