What a deal from Geeks.com:
http://www.geeks.com/details.asp?invtid=2GBDDR2NB6400-MICSYS&cat=RAM. I purchased 4 GB for my new Dell XPS M1330, which is shipping today. Total cost including shipping: $156.46, or $39.12 per GB. Cost on the Dell.com website to upgrade from 2 GB to 4 GB: $375.00, or $187.50 per GB. Percent savings: 79.2%.
AND, the new memory is 800Mhz, whereas the Dell memory option is the slower 667Mhz.
UPDATE: I just discovered that the Santa Rosa chipset, while showing a “800Mhz FSB” option, will underclock the 800Mhz memory down to 667Mhz. The FSB apparently is the bus to the CPU, and doesn’t refer to memory speeds. Who knew? 🙂 Crucial.com shows me the 800Mhz option as the “Best” option for my M1330 using their online configurator.