Re: Hi ! Help for GPU & RAM...
You are in Canada, so you will be using NCIX and/or NewEgg.ca.
I will ask one of the same questions: What is your budget? What is your target amount, and what is your absolute maximum that you cannot go over?
8GB of RAM is no big deal anymore. Photo editing and rendering can use it instead of your hard drive. As fas as memory brands I recommend G.Skill almost exclusively. I use it and have for quite a while. Their Ripjaws series are the bomb.
Which version of the ASUS P7P55D are you looking at? There are several different ones... Deluxe, -E, -E LX, EVO, -E Deluxe, -E Pro, and just plain P7P55D.
Your choice of CPU and PSU are rock solid, BTW. A quad will serve you well both in photo editing and gaming. The motherboard may support ATI CrossfireX, but it can also run Nvidia cards but not in SLI.
My Rig: SABLE
Antec 300 Illusion / Antec EarthWatts EA650 650W / EVGA GTX 760 2GB
AMD FX 8320 x8 Black Edition / Gelid Tranquillo / MSI 970A-G43
Sandisk Ultra Plus 128GB / Samsung 840 120GB / WD Black 750GB / WD Green 1TB / WD Red 3TB
G.SKILL Ripjaws 2x2GB DDR3 1600 - Crucial Ballistix Tracer 2x2GB DDR3 1600
Win7 Ult 64-bit - Func MS3 Mouse - CM Storm QuickFire Rapid Mech Keyboard
R.I.P. Danny L. Trotter
... 14 Nov 1945 - 4 Sept 2009