Hi. I just bought a 2.2ghz MBP, and I will connect it to a 23'' display at 1920X1200 resolution. I plan to use the computer for running the following applications, probably at the same time in some instances: Multiple Tabs/Windows in Safari, with some of them streaming video Multiple Tabs/Windows in Firefox, with some of them streaming video Mail iWork Microsoft Office iTunes Multiple Windows in iChat iMovie, iPhoto, or Garageband Sherlock Intensive Games, such as World of Warcraft Multiple Clips/Movies in Quicktime Player Yes, I have searched on the internet as well as these forums with hazy results, so please don't bash me 1. I just want to know how much this would benefit me. Sure, it may not justify the price of up to $200 because I'm not running "professional apps", but it would be nice to have some noticeable speed difference. 2. I would also like to know where the cheapest 4GB RAM module is. It used to be OCZ with Frys for $160, but I don't think that exists anymore. 3. Also, what should I do with my 2GB RAM? Sell? Keep? 4. On a side note, what, exactly, controls the speed of opening applications? Thanks.