multi-use display recommendation

I currently have a Samsung 941bw display, which is 19" 1440x900. I want to not only connect it to my computer (DVI) but also play console games (using composite video, maybe component in the future). I have a few options:

get a hardware video converter
get a usb input device
get a new display

Getting a new display is my preferred choice, so I am asking for recommendations. I'd like a display that is widescreen, has dvi+component+composite or s-video, can display 4:3 without stretching, and is about $300 to $400. I like my current Samsung, but am not a brand whore, so I don't care who makes it. I have researched like a mofo and found these displays:

Samsung 2280HD
Samsung 215TW
Samsung 225MS
Dell 2007FP (4:3 ratio )

Now, some of these are old/discontinued. Others are too expensive, but I'm just posting these to describe what kind of display I am looking for. The 215TW looks the best, but has a lag issue, I guess. Thanks for any advice or recommendations.