i've had more than my fair share of computer problems in the past 2 months and i'm finally getting my companyh to spring for one for me. i see mas res q has what they called refurbished machines (basically theyre machines they fix and re-sell) and theyre seemingly pretty well priced ($1879 for a 17 inch rev a). i just wanna make sure before i make the jump that i'm going to be happy with it. also, how do you think the 17 inch stacks up against the 15? is the 17 too bulky to lug around, i plan to do my fair share of travelling and id like this thing to accompany me pretty much everywhere i go.