i think phenom will be a better buy coz of its backward as well as future compatible platform. looking at intel roadmap...the next gen quad proc QX9770 wont be compatible with its X38 chipset. u'll hv to upgrade ur mobo to X48 to get this proc running. whereas phenom is compatible with 939, AM and AM+ platform....granted the performance is not on par with intel Q6600...but it presents the best value for money for those who wants to run quad processors on the budget...checkout tomshardware review of phenom on the links below...

tomshardware phenom


just offering my 2 cents...