1600x900 isn't that much different from your current ress except for a few extra roes of pixels. If all else you can overclock your cpu to make up for the shortfall, I don't have problems at this ress but I am using what amounts to being antiques by today's standards. Good old G92/GT200 and two little Fermi cards, that 670 is vastly more powerful. As for your stolen rig chances are that whoever stole it knew before hand that you had it or it was someone who lives not far from where you are. A word of advice to others keep the mac address saved somewhere and put it away as well other unique information about your rigs so that something like this happens it will make things easier as well quicker for cops to track it down.