Will they plug in? will they run slower? how much slower (about)? I realize they need an adapter (possibly by maxupgrades [maxripoff]) to fit it in the drive sled, but other than that, what's the verdict? Uninteresting back story: My silly friend (who is also rich) wants to dump money into a new 12 core (he has a first-rev mac pro), and I'm going line-by-line trying to convince him to save his money. I'm almost positive SSD works okay in his MP (it may need an adapter), but not for sure. Obviously he can just get a cheap SATAII controller card. He does amateur work in MAYA and other rendering stuff but he really, really doesn't need to upgrade.