You should be aware that most brands you know don't actually make a laptop....they buy it from an original design manufacturer. It's a possibility that three different models you are looking at were all made by Foxconn.
The vast majority of laptops on the market are manufactured by a small handful of Original Design Manufacturers (ODM).
Major relationships include:
Quanta sells to (among others) HP, Lenovo, Apple, Acer, Toshiba, Dell, Sony, Fujitsu and NEC
Compal sells to (among others) Acer, Dell, Toshiba, Lenovo and HP/Compaq
Wistron (former manufacturing & design division of Acer) sells to Dell, Acer, Lenovo and HP
Inventec sells to Toshiba, HP and Lenovo
Pegatron sells to Asus, Toshiba, Apple, Dell and Acer
Foxconn sells to Asus, Dell, HP and Apple
Flextronics (former Arima Computer Corporation notebook division) sells to HP
I'd get a Clevo laptop custom built to your specifications. Clevo first grew to popularity as the actual supplier of Alienware laptops, pre-Dell
http://forum.notebookreview.com/sager-clevo/91510-clevo-guide-v2-0-faq-reseller-info.html
CLEVO is a large Taiwanese computer company specializing in laptops. While the Clevo brand name is perhaps not widely known, their products are re-branded and sold by known boutique brand OEMs (Original Equipment Manufacturers)… notably Sager, VoodooPC, Falcon Northwest, Eurocom, etc. They are also considered (by whoever knows about notebooks) to design and manufacturer the best of the best notebooks in terms of superior build quality and innovative designs.
Clevo products are assembled and distributed by various resellers around the world. This is a great site to "shop" on , but I'd buy elsewhere (xoticpc.com) as their support has tanked in recent years
http://www.pro-star.com/index.cfm?mainpage=product&filter=4