I have a 2009 mini that has been running great until I installed Lion. I do have 2GB of memory in it, having upgraded about a year ago. After installing Lion though, everything seems to run a lot slower. Specifically when I open Pages, Numbers or Quicken Essential it takes a lot longer to launch than it did under SL. Also I get a lot more beach balls in Safari. I do have both my wife and myself logged in at all times and do fast user switching back and forth. Do you think if I install more memory, will that speed up my mini? If so, how is the best way to increase my mini to 4GB? When I got my 2GB, I bought the memory myself and took it up to my Apple Store and they installed it for free. But I'm wondering if they will do that now, seeing as how busy they always are. Finally, does anyone have any links for the best deals on memory for the mini?