Well two days ago I purchased a Rev. A refurbished MBP. It's the 2.4 ghz model. I'm planning on also purchasing a Protech matte screen protector. is this a good model, or is there a better matte screen protector out there? Also I've read about how easily the new MB and MBP keys wear. Is it worthwhile to buy a silicon keyboard protector, or can you replace worn keys by yourself cheaply? Thanks =D!