Just picked up a 256GB Crucial M4 from Fry's today. I've been looking at upgrading for a while now, and I'd been watching the prices of the 256GB and 512GB Crucial, Samsung and Plextor models for a while. I would have preferred the Samsung 830, but it's $45 more expensive right now. Anyway, everything feels quite a bit quicker, and I haven't had any issues that I've seen reported with this drive and my vintage MacBook. I ran a few benchmarks and I understand that I'm limited by SATA II, but are these speeds normal(see attachment)? I enabled TRIM as well. Should I do anything else?