Need some help deciding if upgrade is worth it.

[Clinth]

I currently have a gateway 450sx4 with a P4m 1.6, 512ram(max), 14" screen, M6 32mb, and USB 1.1.

I'm looking at gett ing a Gateway 450ROG barebones wich would have a Pm 1.4, 512 ram(1gig max), 15" screen, M7 32mb, and USB 2.

Everything else is the same, is this an worth while swap? it cost ~400. I would be easier for me to do if it was a M9.

Any thoughts?

Thanks,
Clinth