One thing that I should highlight is that "LED" is still LCD. The "LED" bit just refers the the backlighting system of the LCD panel (the older technology still in use is CCFL). There is some more info on this
here.
As for whether you should go for LED or CCFL backlighting for a gaming monitor - to be honest it really doesn't make much difference. The edge-lit implementation of LED backlighting used in all consumer/gamer level monitors offers the following benefits over CCFL:
- thinner profile monitors possible
- lower power usage
- can produce a more vibrant image
- turn on faster
However, these benefits don't really mean that LED backlighting is a must-have technology (the LED backlighting technology used in modern TVs is much more advanced and is used in conjunction with higher quality/price LCD panel technologies such as IPS and MVA) as it doesn't affect the response times, input lag, contrast ratio, viewing angles or black level. Instead I would recommend choosing your monitor based on its performance in tests which are relevant for gaming, such as:
- true response time (and therefore extent of ghosting)
- Input lag
- static contrast ratio
- black level
- colour accuracy
- viewing angles
As a result, if you are playing a lot of fast-paced games, then LG W2363D 120Hz TN panel (CCFL backlit monitor) is the one to get. It has very fast response times (very little ghosting) and zero input lag - so great for gaming. However, the colour accuracy isn't that great and viewing angles are rather poor (you move your head a bit and the colours shift).
Here is a review.
If you are mainly playing less fast paced games and really want to prioritise image quality, then an E-IPS panel like the
U2211H (which you mentioned in the first post) or the newer LED backlit
U2312HM would be a good choice. These don't offer quite as low response time as the LG above (though still good enough for most gaming uses) but the input lag is pretty good (for the U2312HM it is almost zero like the LG), however the main reason to go for an E-IPS monitor like this is the excellent colour accuracy and wide viewing angles. There are also some fringe benefits with these dell monitors like a really nice stand and an excellent warranty service from Dell.
Here is a review of the U2312HM and
here is one for the U2211H, considering the current price of the U2312HM on OCUK (£200) this is really the one to go for of the two (as it is better suited for gaming and larger).