Hi all, So later this year I am planning on purchasing a macbook pro as my main pc, as i will be traveling and working at the same time.. I am into product design so i use programs such as solidworks (through bootcamp i guess) and photoshop and illustrator. I am deciding whether to buy a base model mbp from an applestore (2.4 2gb ram...) for $2099. Then upgrade it to 4gb ram... or should i buy a new mbp with the 2.5 and 512mb graphics. I am not sure if i need the extra.... so any advice is appreciated.... the other option is to buy a 2.5 ghz mbp on ebay or kijiji...for the same price as the base model..... thanks for the help all....