My comment reflected what p2987 pointed out, namely that you don't utilize all of the pixels you paid for.
But those dells scale well, so it wont be so bad. Plus you'll have the extra square footage that you simply cant get with a smaller panel. Those screens are just literally bigger, even if the pixels get interpolated.
Try gaming on your 2407 at 1280x768, and see if you like it. If you get a th2g, that will be your res
all the time. This to me is the deal breaker. If you could somehow switch back to native, maybe th2g would be worth it in your case.
Whats your thoughts?
after setting up the th2g with 3 monitors to play games, how to (and how easy) to switch between this and the single screen mode? Just pressing a hot-key on the keyboard?
Your desktop will always be 3840x1024. If you run windows there is a utility that will fake windows into thinking you have 3 monitors, so can still fullscreen an app to just one lcd.