If you plan to go Widescreen, I would advise jumping up to 24". The 22" only support 1680 x 1050 maximum resolutions, and the 24" support up to 1920 x 1200 resolutions. It's a huge difference, believe me.
Here is one of the 24" TFTs I use at home:
Newegg.com - SAMSUNG 245BW Black 24" 5ms Widescreen LCD Monitor with Height Adjustment 400 cd/m2 1000:1 (DC 3000:1) - LCD Monitors
New Egg has it for $419 after rebate right now. I did a google search, and found it as low as $339.00. Lowest in store I found was $449.99 at Circuit City.
Here is a place online that I have bought refurbs and open box from and have been very happy with, and they have it at $340:
SAMSUNG 245BW Samsung 245BW 24-inch LCD Monitor ( flat panel monitors lcd )