david00214 wrote:What's the easiest way to tell if the monitor is using a TN panel or something better? And please define "something"

Something better:
IPS, PVA, MVA. Supposedly.
You can tell if a panel is TN easily by looking at it from close to the monitor (a foot away) at a low angle (below the bottom of the monitor) and a high angle (above the top of the monitor). If all the brightnesses are changing dramatically, and generally it looks pretty bad from above or below compared to dead-on, it is TN. This works best after putting up a picture with lots of different colors, bright and dark, saturated or not... but you should be able to tell easily on any monitor at a store even if you cannot adjust what's on the screen.
HOWEVER! TN is not necessarily worse, despite what many people may say. Typically, IPS, PVA, and MVA monitors have better color accuracy, and much better viewing angles. But from my research, they seem totally unsuited to gaming due to high input latency, often exceeding 40ms (on monitors rated for 8ms or 5ms response time). Whether this is inherent to the panel type or because of bad engineering is unclear. But considering that non-TN monitors are much more expensive, be very careful to find out the input latency when you consider buying one, if you are sensitive to that sort of thing. TN monitors are not guaranteed to have low input latency, by the way! But typically they seem to be much lower than the "better" panel types.
P.S. For example, check out the Input Lag graph near the bottom of this review.
http://www.tftcentral.co.uk/reviews/samsung_xl20.htm