Very interesting, im looking forward to your benchmarks for some comparisons! I've recently gotten a Dell Perc 6i for my file server and have set up a 4x 7200.12 1Tb Raid 10 array as well. I'd be very interested to see how the two controllers handle similar arrays. Are you installing windows on the array or a separate drive? What cluster size are you using? Read through? Write back? Let me know and ill follow suit for the most accurate comparisons