I want to get a newer iMac (newer than my Intel Core Duo 17" which can only run Snow Leopard). And by necessity I need to do this as inexpensively as possible. There is one currently for sale on craigs list that intrigues me. It is a 20" Intel core 2 duo 2.40ghz. 3 gb ram, 320 gb hard drive with Mac os El capitan. Apple keyboard and mouse are included. The seller also has some software (iWork) that he is including. I may be able to get it for something close to $100. I'm thinking I could increase the ram to 6g, and at some point put in an SSD. I would appreciate any and all thoughts. Thanks!