probably... you don't have to spend a lot of cash now that the prices have dropped... and, it IS a long time to wait... i say buy now... buit personally, that's me...
and yes, if it is OCed, it should beat a stock X2, i think... tIMO, the main advantage for the X2 is to have Xfire when it's not possible, ie, when you have a single PCIe slot mobo... or if you just want 4x GPUs