If you stick with the GTX560ti, buy an inexpensive $30 nvidia card to attach the extra monitor. (Nvidia, not amd, so you can use the same drivers).
You might even attach a second monitor to it to leave all of the GTX560ti resources available to your primary gaming monitor.
I think that I want the performance boost so I'll go with the 670, and I'll wait for the price drop.
Thanks again guys
You will be pleased.
But, I would not expect any price drops for the GTX670.
It is currently selling well.
Price drops are occuring now, to clear out inventory, for the nvidia cards that the GTX660 series will replace.
If the GTX660 prices are agressive enough, you may see matching prices for the 7850 and similar cards.
The high end will not see any price adjustment until there is something better to compete with them.