I set my parents up with two of the 18" dells, and they're very happy with them. Now, admitedly, the only reason my mom wanted them was because they fit better after she remodeled the room, but to each their own. They've got both DVI and VGA, so you can use them with anything and upgrade to DVI when you get around to it.

The Dell LCD pricing is the best out there, especially when they're on sale or have coupons. (Last I checked they had a 10% off code floating around, fatwallet.com is your friend)

Matthew