For those who shop online, its Cyber Monday when the best deals happen. Last year, some of the best deals on photography equipment happened the day after Cyber Monday.
You can also play chicken and see if prices will drop further. They did last year, Canon really dropped prices as December wore on.
However, I have been watching prices of Dell Computers and finally broke down and ordered one today. I always order the base model and buy my own memory, upgraded video, upgraded operating system, better DVD's, etc. I can buy them cheaper than Dell charges for a upgrade. I wanted to build my own pc this year, but I could not even come close to the Dell price for a base model XPS 8500 3rd generation I7 unit.($685). I already bought a new Samsung 830 256GB SSD on a one day sale, its sitting here waiting for a home along with a new 3TB hard drive also bought on sale. I am going to wait on additional memory and upgraded video card for a sale. I do not do gaming, so I will be upgrading, but still keeping to a mid level card, just one that handles HD video well.