I wouldn't worry too much about that picture. Most of the people in it look like they would being screaming gibberish while shit-faced drunk anyway. I'm sure there will be some consequences for killing Osama, but that is to be expected. All we can do is hope the negative repercussions of this event remain as small as possible.
I got a 22 inch LG monitor for around $230 at the local Best Buy and so far it's been working pretty good. I believe it's a 1920x1080 resolution. Just make sure you have a sturdy desk because the stand it comes with isn't great for stability. It's just a little bit different than this.