Hi there, I'm in the market for a new 15" MacBook PRO to replace the 1st generation one I currently have. You can imagine how happy I was when the new lineup was announced. I went to my local Authorized Reseller on Friday to pick the bottom-line 15" MBP up. Unfortunately they were out of stock, but they will get new shipments tomorrow or Tuesday. While I was there, however, I was offered a refurbished demo model, what I think is the old top-of-the-line 15" MBP. New $1699 15" MBP specs: 2.53GHz Intel Core 2 Duo 4GB of memory 250GB hard drive NVIDIA GeForce 9400M graphics +New, built-in battery +SD Card Slot Refurbished 15" MBP specs: 2.66GHz Intel Core 2 Duo 4GB of memory 320GB hard drive NVIDIA GeForce 9400M + 9400M GT with 256MB of memory +Old, removable battery +ExpressCard slot +Used for less than a month as an in-store demo model Now I'm in a bit of a dilemma around which one to get. I haven't seen the refurbished model with my own eyes but it should be as good as new. I don't plan on using the ExpressCard / SD-card interfaces, so that should be factored out of the equation. They have the same amount of memory and almost the same CPU (is there a big difference between the 2.53GHz and the 2.66GHz model?) The two major differences are: The battery The additional 9400M GT graphics card in the refurbished model The additional graphics card is a big factor. I do light Photoshop work and my current RadeonX1600 has served me pretty well, I don't need expreme performance enhancements over that. However, I hear that Snow Leopard should be able to get some more juice out of the graphics card with OpenCL etc. Is it worth investing in the additional 9400M GT? The battery life is extremely important to me. I use it for school and would like to squeeze 5 hours out of the battery. I wore my current removable battery out in about 1 year, so even though the new batteries can last for longer I will probably need to swap it eventually. How much milage am I going to get with the old, removable battery? I would be willing to buy an extra battery so I could swap between them. The two cost about the same, and they are both eligible for AppleCare (which I'm planning on getting). Advice?