go for a dell. everytime go for the dell. well...the monitors anyway...maybe an Asus actually but you're better off buying something without a built in speaker/webcam etc... i digress, go for a dell the 08s are good and the 06s are ugly. i've never used any of the 07s but they are probably the best compromise tbh
dells used to use superior s-pva panels with brilliant veiwing angles and numerous other advantages, but now, only the dell 2408 and bigger monitors aren't using the cheaper, worse TN panels. dells are generally quite expensive, especially compared tothe budget monitors, so i find it hard to justify the price tag.
