It seems the general consensus with early 2008 macbook is to stick with snow leopard as there are issues with page outs and sluggish performance with snow leopard. But I really want to run Lion on my macbook as I already have a 2012 Mini with Mountain Lion. I also love the multitouch gestures. My macbook currently has 3gb of ram, but I can swap out a stick to give it 4gb, and I have several SSD's laying around that need new homes.