I really wouldnt get that one, but the choice is up to you. That one has a bad pixel pitch compared to 17 inch monitors, and it has a low contrast ratio.
That's the monitor I use and it treats me very well, it's colors are amazing too, I highly reccomend it for gaming.
It's worth the extra 30 bucks. As for resolutions, every decent monitor will run at 1280x1024 natively, only 15 inchers which almost no one uses run at 1024x768. 17 Inchers can scale down and still look pretty sharp, I run mine at 1024x768 for the windows desktop, aswell as games that I cant push to 1280x1024. It still looks great.