This article is BS. Vista needs 2 GIGS MINIMUM, running with 1 gig is only for folks using it as a word processor and email system. Everybody else needs 2 gigs minimum to not have stalls or bottlenecks. Where is this geek getting his information for OCT 2009 article?
Also, your system can't utilize more than 3 gigs for a single ap with a 32 bit install of VISTA, all 64 bit installs can accomodate loads more ram per application. So for 32 bit systems don't install more than 4 gigs of ram. I say 4 gigs because most ram kits are sweet spot priced to move 4 gigs not 3 gigs, and in the next year or two many more programs will be dependent on the OS allowing a single app access to more than 2 or 3 gigs of ram.