Hmm, tough choice. If by adding another gig of ram I do not hinder dual channel, then its only a $20 upgrade and can hold me for awhile.
FYI: I do programming with c# and SQL server, watch movies, and use the web. WHile games are nice, I have a PS3 for that, but would like to play supreme commander.
Will I see a benefit with the new system for what I do? I am bogging down a bit due to IE 8 taking up about 500 megs of ram for normal browsing !