Office Depot has an Acer 22" up to 1680 x 1050 reso on sale this coming monday for 149.99. I actually own the exact monitor (use it as a second monitor on my desktop) and it is not a bad monitor. The picture quality is just as good as my 500 dollar 24", the only difference is my 24" has HDMI / Component / Svideo inputs where as the Acer 22" is only DVI / VGA.
Still if all you plan to use it for is a computer monitor (I use my 24" as a tv as well) then it is a great monitor for the price. But if your wanting an HD Monitor then you'll need to look for something more pricey.