Sorry for all the noobish questions... Can you upgrade certain parts of mbp down the road? for example your processor, memory RAMs or the harddrive? i assume upgrading your harddrive is easier than upgrading your processor? i bought the base MBP 15" model and i would like to upgrade it to higher-end i7chip down the road (probably a good year from now)... would the switch possible? lastly (i swear this will be my last question for the night)... can i just buy any harddrive on newegg or is there a certain brand or type of harddrive that i need to buy? the base 5400rpm is little too slow. thank you.