????

I'm confused...you said to find you something with a similar resolution (1440x900 in your post) with smaller than 15.4" screen. Just saying, that's what I did

And I narrowed it down by picking a random manufacturer (Lenovo), a small screen size (14-14.9"), and then worked up from the lightest weight until I got some results. That left me with about six models and the first one I clicked on was a 14.1" with 1440x900 resolution.

Given that you probably don't want to consider every brand on the market (there are some crappy ones after all), you might try this method, going from brand to brand. It narrows it down somewhat...