Very nice modules, these would be the latest offering from OCZ?!
I hope you can get a hold of the 2x1GB DDR2 667MHz Gold XTC Dual Channel kit, as these are likely what I will get for my system (i945 chipset), however will be *extremely* overpriced where I live (Oz)...
Also, try get ahold of some Corsair XPERT series modules, or at least if you have your hands busy, send them to me for a review in a new Dell XPS 400 [:)]...?! I would be happy to help.