In my opinion, 27" is a little too big for 1080p. I had the 27" Acer you linked earlier in the thread. The picture was great, but if you sit close to the screen like I do, you can notice individual pixels. If you're not sensitive to that sort of thing, then the Acer is great bang for the buck. I now have a Catleap 2560x1440 monitor that I got for $300usd and couldn't be happier with it. Your 580 might struggle a tiny bit at the higher resolution, heck my 670 does, so you'll have to turn down AA. 2xMSAA at 2560x1440 has a little more aliasing than 4xMSAA at 1080p, but the image is much sharper. I'm sure you'll upgrade your GPU before you upgrade your monitor again, so I think you're better of going with a higher resolution.
Last edited by Ralfies; Jan 4, 2013 at 12:21 AM.