I purchased one of the first Intel Core Duo Macbook Pros back in 2006. It currently has the following: Mac OSX 10.4.11 1.83 GHz Intel Core Duo 512 MB 667 MHz RAM Memory 80GB Hard drive (currently stating 5.12GB available) I stupidly replaced my stolen 3GS with an iPhone 4, not realizing I wouldn't be able to use it. Cost wise, it looks like older 3GS are selling for very high costs. Alternatively I would downgrade to an 8GB. (not the point) Would it even be physically possible to upgrade my computer to even hold Snow Leopard in order to use it? If so, is it better cost wise to purchase a new or refurbished Mac (any model) to replace it? Any help would be appreciated. Please pardon any message board faux pas, I am new to this.