I've just purchased a Packard Bell LX.BGH02.011/ XS-EV-001UK. This is the same model as the Gateway EC14D07u but just with a different processor. As most people know Acer is the parent company behind these two companies. Packard Bell Butterfly XS, 11.6" Notebook with integral ODD ( Intel ULV 743, 2GB Ram 250GB HDD, WiFi, Windows 7 Premium ): Amazon.co.uk: Computers & Accessories Amazon.com: Gateway EC14D07u 11.6-Inch Laptop (Black): Computer & Accessories I went with it as i needed the dvd drive. This laptop comes with a Intel® Celeron® processor 743 (1 MB L2 cache, 1.30 GHz, 800 MHz FSB, 10 W). Now i most likely will upgrade this next week to a SU4100 or to a SU9400. I wanted the above Gateway model as it comes with a suprerior processor but couldn't find one for sale. The SU9300-U9600 also have 1MB extra more of cache than the 2MB that the SU4100 has. I have a broken Sony TT motherboard here (which has a SU9400) which i needed to purchase for parts. I would like to use this processor but i'm not sure what Acer/Gateway are like with regards to locking out the BIOS to upgrades. I could purchase a broken motherboard to accquire the SU4100 but i'm trying to keep costs as low as possible. I can also it looks like install a WWAN module. Now, do you think i should try the SU9XXX? Has anyone ever done such a mod on a Acer/Gateway/Packard Bell before? This upgrade requires a BGA job to unsolder then solder the CPU and it will cost me £95 to do this.