Hey I have a MacBook Pro 13", early 2011, 2,3 GHz Intel Core i5 with a normal HDD. It might not have a fast gfx card, but the worst part of it, is that it is incredible slow when starting apps and feels unresponsive. I am considering adding a SSD (256gb) to fix the issue - will it help? What kind of performance improvements am I going to see? I have no idea which SSD fits the MacBook Pro, so can anyone give me some guidance? Is it easy to replace the HDD with a SSD or will I need help from a Apple certified dealer?