pfff... and i thought i asked a simple question

anyway thanks for the replys so far chaps, i still have to learn a lot...
One more question: could i do a serious upgrade now with what is on the market right now,and with a fair chance to play SOW comfortably when it comes out, or should i wait for the release of official specifications?
Of course any reply to my question and what i will do in the end is only my responsability, i just wanted advise from chaps who know mare about it then i do
Thanks again