I recently got an HP dm4-2070us from Staples for $700 before $50 rebate and it isn't bad since it's running a SandyBridge i5 and 8GB RAM. However, I can return it because my friend is selling a sealed MacBook for $750. My question is if this MacBook is future proofed and will it run Lion as well as a MBP? I plan on putting 8GB RAM and maybe an SSD in it or just a faster HDD. I have always viewed macs like this: a Mac running a two year old processor still runs smoother than a PC having the latest processor. Help me out here guys.