Just slightly over your budget at $329 but I just picked up an HP w2207 at Circuit City and I'm loving it. Screen is perfect, no defects, and looks spectacular. No discernible "ghosting" in games as opposed to my old Viewsonic VP191b.
I'm looking for a 22 inch widescreen as well, i've heard a lot of good things about the Samsung 226BW. But i'd also like suggestions, price isn't so much of an issue. I don't care too much about super high resolution as much as i do refresh-rate and response time. I want minimal to no ghosting and minimal to no tearing. Any suggestions for me as well?