Hi, I do audio engineering work with ProTools, as well as music creation using MIDI controllers with Logic. I also do light Photoshop work, although I'm still learning how to use PS4. What kind of MacBook Pro configuration should I go for? 4GB or 2GB RAM, 2.4GHz or 2.53GHz processor? I'm trying to keep my budget under $2,500, and I'll be purchasing the MacBook Pro with a college discount.