Which IPS monitor for gaming?

Hey guys,

I finished my gaming rig (see below) a couple months back, but I am so very dissapointed with my monitor, the LG W2363D. It's a 120Hz TN panel, but in all honesty I can't tell the difference in smoothness. I knew that the color accuracy wasn't going to be great because it's a TN panel, but this wasn't what I was expecting at all.

So I've decided, I'm going to try to sell this monitor while searching for a new one. I'm going to go with an IPS this time, because I really don't think I will notice any ghosting (I couldn't tell the difference in a TN after all), and the colors are just THAT much better.

I want to go with a Dell because they have all consistently amazing reviews. My price limit is no more than $300, give or take.
So here are the monitors I found:

U2412M for $289:
http://www.ebay.com/itm/NEW-Dell-UltraSharp-U2412M-24-inch-LED-LCD-3YR-/110885841867?pt=Computer_Monitors&hash=item19d14fabcb

or
for $310 with extra year warranty:
http://www.newegg.com/Product/Product.aspx?Item=N82E16824260047


U2312HM for $235:
http://www.ebay.com/itm/Brand-New-Dell-U2312hm-Newest-Revision-A04-Full-3-Year-Warr-14-Day-Returns-/160796781309?pt=Computer_Monitors&hash=item25703c2afd

or ($220 without warranty?)
http://www.amazon.com/Dell-UltraSharp-U2312HM-IPS-Monitor/dp/B005LN1JEC/ref=sr_1_1?s=electronics&ie=UTF8&qid=1338065329&sr=1-1

Now that I have narrowed down my choices, I have a couple questions that you guys could please help me with!

1.) The U2312HM on ebay lists that it comes with a 3 year warranty, however it does not on the amazon page. Does the monitor from amazon come with any sort of warranty?

2.) Is there any major difference between 1920x1080 or 1920x1200 when gaming? I heard since the 1200p is a 16:10 ratio, it suffers from black bars or field of view loss when gaming. Is this true? Would there be any noticeable fps difference between the resolutions? Also apparently The Witcher 2 (a game I am currently playing) is incompatible with 1200p resolutions. Is that going to be a problem?

3.) What's with the no HDMI? If DVI is the same as HDMI without the audio, then I'm fine with that, but I could be wrong.

4.) It seems the U24 monitor I listed on the ebay link has a Rev A03 panel, while the U23 on the ebay link is a Rev A04. Is there any difference in the picture quality between the two?

4.) Finally, in your opinion do you think the U24 is worth the extra money?? 1 inch bigger screen, 16:10 1200p vs 16:9 1080p, same amount of ports. Is one screen better than the other?

Thanks for the help guys!

Thank you for the help I really appreciate it! I really want to get the 24" 16:10 screen, but there are 2 things holding me back:

1.) It seems the industry is heading more and more towards ONLY 1080p screens. I don't want to have to switch to 1080p (therefore degrading my picture quality because it isn't my native resolution) because future games won't support 1920x1200. Your native resolution always looks best, so I don't want to be forced to that.

2.) The U23 has a MUCH lower input lag (.6 ms) than any of its competition, including the U24 (9.4ms). If the picture quality is about the same on both monitors, but one has a much better input lag, why wouldn't you go with that one?


Of course I probably wouldn't be able to tell the difference anyway in #2, so maybe I should just cast my worries away and go for the U24.