In reply to Jeff Chandler.

You're not alone in this multiscreen madness!
I usually work with two 23 inches at home but in the office I recently got a 27" display to pair a 24" I already have and I must admit that those extra inches are a really nice thing to have.

I do a lot of graphics for printing, some 3d modelling and also lots of WP in the latest years so many times my screens are like [Firebug]+[browser] or [Photoshop]+[Browser] or [Indesign/Bridge]+[Illustrator/Photoshop] or [Solidworks]+[Keyshot], I can't imagine doing all that in just 13", really.
Now that I'm also doing some serious social media marketing I begin to consider adding a third one just for hootsuite. I would like to invest in a nice big 55" 4k display just for that. (I just need to find the money ;-))

I use also win7pro in my main machine (i7 + 16gigs ram + a couple of ssd's) as well as a couple of IMacs in the office and honestly I don't really feel all that difference with my workflow (or efficiency) with WordPress or the adobe suite.

Who knows if in the end I finish with a setup like this: http://goo.gl/dQR0la