There are a number of displays that share the same AUO 17" 16ms panel and have DVI. If you don't want DVI, then there are even more to choose from. At native resolution, the backlight is likely the primary difference to image quality so don't believe Hitachi's claimed greater viewing angle but some will be brighter than others and different hardware gutsies can effect the image too, particularly with scaling. Otherwise it mostly comes down to additional features.
Planar PX171M - 1W integrated speakers, full pivot stand, includes 2 day replacement warranty, avail. beige, black or silver
NEC 1760NX - slim bezel, height adjustment (1760NX-1 model only), certified for TCO03 late October probably a result of the added height adjustment whereas previously was only TCO99, avail. white or black, does not include DVI cable, made by Lite-On
Viewsonic VP171b - full pivot stand, slim bezel, supports switching between 2 simultaneous inputs, annoying "digital" notification box popup?, avail. black or silver
Hitachi CML174/5 - (/5 has integrated speakers), low retail price in lieu of Dell deals on above models, dimmer backlight, limited adjustment, "black" model is grey, also avail. white, made by Compal
BenQ FP791 - integrated speakers, fugly!
The first three can prolly be had for about $400 final cost from Dell today. But such sales have been frequent and are likely to repeat though the end of the year at least.
As for the Planar specifically, PC Magazine says:
"On our DisplayMate tests, the unit had trouble displaying close to 10 percent of the shades at either end of the gray scale. The unit suffered from marked jitter during our pixel phase test, and it failed to display subtle shades on our low-saturation color test.
Predictably, the unit also had a few problems with digital photos. Backgrounds seemed oversaturated with color, and we couldn't always see details in shadows. The Planar LCD's bezel is a dream, but its screen is a different matter."
Now, how much of that is specific to the Planar model versus any with the same panel is difficult to guess. Personally, I think the Planar's best features are replacement warranty and pivot. But the bezel is not the slimmest and I don't like the speakers (particularly bad when in portrait mode), lack of cable guide, and (getting picky now), the "cheesy" big logo. I have been considering these for awhile myself and it sure ain't an easy decision when there is not one that firmly stands out above the rest and especially as new stuff is always just around the corner.