I love Dell. I really like them. I only use the Ultrasharp models, due to color, timing and resolution (16x10). U2408 was my last (have 3 of them). Bought a U2711 (on sale for $899, 250 off) and love it. Longing for a U3011 (just released like a month ago, think about $1200-1300). Sure they are expensive, but I like the theory that is the thing you look at most and get the best you can afford, since you can't upgrade it.

Two was to think about it. Either buy the same as you have now, or just run the new monitor as the older resolution. SC2 is jacked up that 16:9 show more space than a 16:10 so I just run my monitor (16:10) at 16:9 for SC2 only.