It's more than possible that several of my questions have been answered in the hundreds of threads about this topic. Anyway after searching for quite some time I still couldn't find reliable information. I'm getting my 2011 15" MBP with 2.2 i7 shortly. I'd like to do the optibay modification. The plan is to swap out the stock drive by a 120gb ssd and install a hdd in the optibay. Before doing this, I've got a few questions about the following issues: 1. What SSD will work fine? I've read several posts about SSDs having trouble with SATA3 speeds. I don't care if it'll run at SATA2 or SATA3 speeds. I don't think I will feel a difference in real world anyway. I would have great offers on an Intel X25-M Gen2 160GB or a Vertex 2 120GB. Can you recommend one of them? 2. What HDD will work fine? I've read about hibernation issues when installed in optibay. Do I have to worry about that or is this issue not really common? I'm looking for a 500 or 750GB HD which should be as fast and as silent as possible at the same time. Is it possible to use 7200 rpm speed or do you recommend 5400 rpm? 3. If I install SSD and 7200RPM HDD will I see a huge increase in power consumption? Would it be slightly better with a 5400 RPM HDD? Is there anything else I should know? I'm really interested in this mod as I generally don't need a superdrive but could use the speed AND the capacity of this solution. But the most important thing is: I need my machine to be reliable! Thanks guys!