Re: Opinions on what to upgrade??
First off, what do you mean performance loss with dual displays? You mean spanning your desktop and gaming over the two monitors? I can't comment on that, don't know anything about it, hopefully someone else can.
Your Q6600 is a great processor, if you're itching to upgrade I would get the GTX 285. What was the persons reasoning to wait on a video card?
Your rig as it is now is really fine. Since your CPU is on water, you sould be running it at least 3.6ghz, and especially at that, it's still a very competitive proc. If you game, you should be most concerned with your video card, which is why I say go with a GTX 285, gaming at the resolution you do and higher, you'll be quite pleased with it.
Back on being mobile - ASUS G551- 15.3" 1080p - Core i7 4710HQ - GTX 860M - 16GB DDR3 1600 - 512GB Samsung 850 Pro - Steam ID: TheOtis