[Ramin Mohammadalikhani]

I know you were a Mac user but any particular reason to want an iMac? With an iMac (also with the modern Mac Pros) the hardware is pretty much already set which you cannot change it even though it may not be the best hardware you could have for the same money considering your specific needs that is an optimal hardware for the Adobe suite.
If it were me, I would build myself a custom system, either assemble it myself (which is what I did two years ago) or, have a technician do it for me. This way, I can have the best possible hardware configuration tuned for my needs: the best graphic controller within my budget, a proper raid system, motherboard and CPU, RAM (probably of ECC type), a blu-ray reader/burner drive and a quality computer case to accommodate these components and keeping them cool while leaving some room for possible future upgrades.
If I need a high resolution display, there are right now plenty of 4k monitors in the market of whom some are quite reasonably priced. Plus there is also a 27″ 5K dell monitor.

[Ramin Mohammadalikhani]

I found the answer: it works by holding only the ctrl key down while selecting items.

The reason I didn’t find it first was because I believed any combination of modifiers should include the shift key which was not the case.

[Ramin Mohammadalikhani]

I already tried different combination of modifying keys that I could think of and none worked. I also checked the keyboard shortcuts and couldn’t find any. However, as in the Youtube video, there seems to be a way to do it though it may only be possible in CC not CS6.

[Ramin Mohammadalikhani]

I am not as professional as you guys so I am not stressed to have quick support if something goes wrong with my system. I am also switching from Mac Pro to a PC workstation (from FCP to APP). I build and maintain my own system. For

$1800 for 2 x Xeon X5670: six cores 2.93ghz each (bought used)
$350 EVGA SR-2 (bought used)
$150 EVGA GTX 480 (bought used)
$250 for 48GB RAM (bought new)
$250 PSU (bought new)
$200 raid Card (used)
$300 2 x SSD hard drives in raid zero for system drive (new)
I am using my old HDD’s from the Mac Pro for data drive

Case: well a very decent case could be had for $220 but I opted for an expensive case.

I am currently using Windows 7 but may switch to Windows 8 once it is released.

Next, the Xeon’s can be overclocked on SR-2 to probably beyond 4GHz, if speed is important to you. OC is something you can’t get on Mac. The system is currently being cooled by air but, I am contemplating on utilizing a liquid cooling system. However, I understand it adds another $700 or so to the costs.

The whole system should cost $5000-$6000 (if all parts were bought new) and is probably as good as or even better than a $10000-$14000 system one might buy from big names.

So if you don’t need big name’s after sale support and you are on budget, you can simply buy the parts yourself and build it yourself or, ask a local computer shop to assemble it for you.

Now my question is having Quadro useful? For Adobe Premium Production suite, the only advantage I see it might have is support for 10bit color assuming you have a 10bit monitor to take advantage of it. Since I don’t currently have such an expensive monitor, I am better served with a Geforce card than a quadro. A cheap GTX 480 has twice more cuda cores than Quadro 4000. So are there other advantages to a Quadro card that I am missing?

Just my 2 cents.

Thanks, Ramin