Im planning on using an old laptop of myn to make a handheld gamimg system. I want to know if there are any good laptops that are small and have custom parts in them? Like graphics cards that are pic-e and sound cards that are pci-e? I want it like that so I can make a strong gaming system out of it, to take on long car rides and stuff plus itll be fun to do. What im asking for is a list of ok laptops that i can take apart and put into a new case but I want to beable to change things if needed like putting the graphics back to back with the mainboard or something like that. So what laptops would be good for me @ around $600?