Hi Gang, I'm in the middle of replacing my SuperDrive with a sata2 SSD in my early 2011 13" Macbook Pro. Do any of you know of limitations, problems, issues with this setup? EX: sleeping, wake-up, hibernation, sleep the SSD, benchmarks, installation, etc...? I will be removing the optical bay superdrive and replacing it with a HDD Caddy and then inserting my current sata2 180g Vertex2 SSD in there. I was evaluating a new SSD purchased and my choices were the 256g M4, the 256g 840 Pro, and the standard 250g 840 SSD. I ended up choosing the standard Samsung 840 since the price was $149 with no tax and free shipping. I couldn't justify the price of $235 for the 840 Pro, and the $195 for the M4. I wanted the 840 Pro, but the $80 difference for such a small increase in write performance didn't seem worth it Since I will be putting the new 250g Samsung 840 SSD in the main bay, I figure I will use the optical bay SSD for Super Duper nightly clones. I figure that those will be fairly quick transfer speed wise. I think the optical bay SSD should work fine as a sata2 SSD? In regards to firmware updates, maybe I should create a small BootCamp partition on my main bay Samsung 840 SSD in order to facilitate any future firmware upgrades. Or can I do a Boot Camp partition anytime further down the road? Can I install Win XP in BootCamp on an early 2011 MB pro? Day to Day performance wise, I figure that I may also notice a speed difference and real-world performance by upgrading from a sata2 Vertex2 to a sata3 Samsung 840 in the main HDD bay. Have any of you experimented with this type of dual SSD setup? And what tips, info, or speed benchmarks can you offer me?