So the more i look into the new 15' the more i want the darn thing. I have one on order and am planning on testing it out and deciding if i like the bigger screen and power or not. I bought a 13' in march (3.1, i7, 512, 16 rm) i could give it to the wife or sell it if the price would be right. How much would one think the 13' with those specs would go for?