I downgraded from a 3007WFP to a U2410. I wanted the extra connectivity (HDMI, DP, extra DVI, etc) and did not want to pay for a U3011. There is a very big difference in resolution and it's noticeable right away, as you lose a lot of real estate.
It's kinda tough to play SC2 on high resolution screen if you're used to something smaller. To keep MP even what you see is the same regardless of resolution, so on a higher res screen everything is bigger. This is one of the reasons why SC2 doesn't support Eyefinity.
Slight correction: SC2 will *NOT* show the same regardless of resolution. You will see *MORE* if you have a widescreen 16:9 aspect ratio, compared to someone else using a taller/narrower 16:10 or 4:3 aspect ratios etc.
The reason is that at the narrower aspect ratios, SC2 will crop off the sides of the display and throw them out so you don't see them.
If you don't use 16:9, you are playing with a disadvantage because you are not seeing the entire playing field that others will see. In that case, to even the playing field when using a 4:3 or other screen that is not native 16:9, you should change your resolution to one of the 16:9 aspect ratios. If SC2 does not display one, you can take additional steps in Windows to enable SC2 to recognize the additional options. Then, run SC2 on your tall display with letterboxing on the top and bottom so you can include the extra wide views on the sides.
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