Acer 24" LCD Monitor now $499 @ Computer Alliance!!
I have a 24" widescreen monitor myself (it's a Dell however), and the screen size is absolutely great.
Here's the important bits of the spec:
It's a 24" monitor, and it has a 6ms response rate, which IMHO is perfect for gaming or watching movies. It has VGA and DVI inputs. Brightness 500cd/m2 and Contrast Ratio 800:1. Warranty: 3 year and 1920x1200 WUXGA Resolution.