Well, before jumping into the widescreen bandwagon, i had the same question but then i found that whatever u play now on 4:3 will look the same on widescreen just a little extra space on both sides...
And i didn't find any stretching in any game which i thought would be definitely dere...Seems like the game or the monitor scale well enuf to show every game in a proper resolution and with picture perfect figures...
So, it all looks the same on 4:3 or 16:9, except for local TV which u have to crop to see on widescreen...
Get a 16:9 widescreen if u wanna game and u r not much into watching TV on ur PC. It would be worth every penny u put into it...I am playing Fallout 3 currently...
As of now, the hottest option in TE seems to be the Samsung 2233SW...Get it for ~10.3k and enjoy...
Note: The only problem in these monitors is the resolution...I mean its the best(HD) but u need a good card to play games at this resolution...My 9600GT is a little weak though it lets me play nearly most of the games with medium to high settings at this resolution...So, check ur card before u get a 22"...Else, go for 19" Dell for 7.2k