You know, I'd probably go HP.
The name Dell "Inspiron" does a lot of things, but it doesn't exactly instil confidence. For Vostro, Latitude or XPS, I'd have to think a lot more, but I'd stay away from the inspiron series. Doesn't seem worth it, not at these price points.
However, that might've changed. I'm very much prepared to be corrected on this matter.