Long time - no write ... actually I do check in with you all but most of the time I usually find an answer to something in your archives that's been asked and answered 10 times over. Long story - short: Power supply stopped and motherboard blew.

Now, I just need some quick and sound general advice ... I am in the process of upgrading my PC and wow have things changed. It's been about 5 yrs since I last checked with my computer centre. What do some of you think are a generally good motherboard, CPU, memory and power supply.

Motherboard: Asus Formula or Gigabyte?
CPU Processor 64bit: Intel i7 or i5? (Is the i7 really any better for my purposes - not a gamer)
Ram Memory: Corsair Dominator (are these really that superior?)
Power Supply: Hyper Power 1Kw or Corsair?

Up to 3 days ago I wasn't even aware that 64 bit existed so this has all become a fast-forward education. Any help and advice is appreciated.
My tech people adviced me about a Noctua cooling system for the Memory ... is this really necessary? I am not a gamer but a heavy Photoshop/Illustrator user. I am on somewhat of a limited budget (+/- 800 Euros) so I am not seeking to spend a fortune but I do want some long lasting stable quality. Thank you.