i think the most appropriate break up is the following,
30% money because it will buy some pretty decent stuff to work with
30% combination of component coz u cant have the best cpu in the world and run it with a mediocre ram and expect performance
30% knowledge, well if u dont know that when a cpu runs cooler it runs better u cant do anything with a fx-60 right?
5% experience coz u should be able to based on experience decide which is the best air flow setup and os setup, the tweaks and so on
5% luck coz luck is in getting a vapochill or similar LN system, running ur cpu at 5.0GHz and leaking LN on ur board...
simply my thoughts...