Haswell is less than a month away, you might aswell get a new Haswell cpu, even it its only a 10% performance increase.
As for the components, everyone has different tastes and experiences with different brands.
Look up reviews online and decide for yourself.
When Haswell and Nvidia 700 release, some people on Youtube do these build videos, you could get some inspiration from them.
When you're done with picking your parts, just post a question here to find out if anyone has had experiences with them or maybe someone has other suggesions.
Good luck