Popo, it's like I said in the other post, please stop spamming. That post was not helpful in the least, since you don't build
laptops. You can upgrade but the components to completely build a laptop are not publicly sold. Stay focused on the question, not side questions that were never asked.
Now then, as Will said:
They have the greatest selection of all things computer and never overcharge for shipping, which is very reliable (and fast; the cheapest shipping method is UPS 3-day).
They might be able to help you, but Newegg is better.
TigerDirect has much better deals and I do
trust them over Newegg, as I order all my computer components from TD
But honestly, Newegg does have some things that TD does not have (including some newer and some older products).