I also recommend the 900nf (not only because I have it... I did choose it for a reason

). Although it is around the $400 range unless you find a hot deal, it is definitely worth it. Samsung often has a $30 rebate but this month they don't. You could chance waiting until July for new rebates to come out but there is no gauruntee the 900nf will be on there.
1280x1024@100hz and 1600x1200@85hz too.
Although the LG Flatrons seem to be getting some praise... I haven't heard that much about them or have seen one but you might want to check one out.
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I only recomend this monitor if 60-70hz doesn't bother your eyes >>
Ugh how could ya stand that? After using a 15" for about 4 years often at 1024x768@60hz, I can definitely tell my eyes are worse. I would think using a monitor in general will cause worse eyesight over time, I'm sure that didn't help at all. After using 85hz or 100hz, I get a headache or my eyes hurt at 60hz and at 75hz even I can use it just not for very long or it gets annoying.