The problem with the computer is it seems like you’re stuck with what you get. I don’t know what you can do with it as far as expandability. It seems to be a very proprietary system.
As far as the XH-A1, that’s a viable option. You may also want to consider Sony’s FX1.
And I would only get the blue-ray burner if 1) you absolutely need it and 2) blue-ray is something you think will stick around. Otherwise I would spend the money on a single-bay blue-ray burner and a single-bay HD-DVD burner.
