I recently decided to upgrade and had the same questions. I was given this to look into by NickN:
http://www.newegg.com/product/product.a ... 6824014124Large real estate, native 1920x1200, fastest response in class (6ms) with a true 8bit screen (most are 6bit), no banding, no distortion, no ghosting, ready for Bluray HD and HDMI. A true 1080 unit.
For the cost to size/feature/quality ratio I can not fine a better one and will be ordering it next week. I was looking into cheaper however when I look at how much is spent on the cheaper compare to what the 24inch had to offer, spending a bit more for something that would provide a better quality image @ that size was a no-brainer for me.
It will not stretch the signal if you are running a Nvidia or ATI adapter. It runs it 1:1 at full 1920x1200 screen size as set to in-game