Has the warranty expired? If so, i'm pretty sure you can't extend the warranty. But say you do get the warranty, so it's $150 + another $150 for the upgrades which total everything up to $600 and you're going to sell that on ebay? Personally it's not worth it and i gaurantee, you might not break even. link me where you see you can get it for $700. besides, your laptop is a year old... so it doesnt matter with the warranty.