you got a point to a certain extent.
whats a month thou? There will not be no new range of cpus from Intel till Nehalem (possibly Q4 2008). Like you said current stuff will be cheaper.. Most New-Gen Hardware has already been released.. penryn on the verge.. Phenoms out, some revised 8800's soon. Theres only 1 major New-Gen series that is taking its time and thats nvidia 9 series. Thats the only major hardware thats around the corner mate not much else.
I still think it would be better if you wait for Jan Penryn release.. QX9450 or cheaper Q6600.
Depends if you can make it thru xmas without a new pc.