Funny, my home setup also has a 24" at 1920 which I've been using for 4 years now. Next to it I have an old 19" LCD.
I'm going to wait a little to see what happens. Some analysts suggest that the iPad3 effect will now make its way to monitors, since I'm not in a hurry I'll see whether this becomes true.
On your remark of minimizing windows to see the desktop, I was wondering if you knew the Win7 shortcut for that? It's the utmost right little square on your taskbar. Another way is to "shake" you main window.