Seasonic has fanless PSUs. Maybe worth looking at. If you're not gunna use Z68 features go for P67.
Alot of rendering apps will benefit from 8 threads. Your call.
Some good Z68 boards:
ASUS z68-V Pro
ASRock Extreme4 Z68
Is it worth â‚¬70 to render a few videos, though?
Only reason I wanted a Z68 is because of onboard graphics, V pro doesn't have onboard.
I might just go with P67 UD4
If you are rendering (which let me say I know very little about) then I believe that is one of the few workloads that the extra money for the 2600k would actually be well spent. For a cheaper GPU I would highly recommend this 460 1Gb from Amazon, it's $160 after rebate and is factory overclocked to the same speed as most 560 non ti's. If you are looking for a cheaper but still quality PSU option I would recommend thinking about all your needs/wants out of a PSU and then asking the PSU section, we have quite the collection of knowledgeable people there. Hope this helps (I think that 460 is a very good card in the under $200 range) and best of luck.
I'm not looking for a overclocked card, I can do that myself if I fealt the need to do so, I'm looking for a silent card.. So question: Is it silent?
I'll ask around in the PSU section.