Hello ambandla
Thank you very much for your very helpful contribution. I have decided to go for C2D E6320 [as you earlier suggested] with DG965RYKT mobo fom Intel. As I foud out that C2D performs far better when it comes to multi tasking over X2, and as you correctly pointed out in one of your earlier posts, it will be better if I go C2D as AV work involves heavy multitasking and it is quite taxing for the CPU.
I hope you shall agree with my final view.
Regards