Its always better to invest in multiple areas. One is Angel investing (check with PG if he is willing to join you as YC partner :), one might be stocks of Googl

Its always better to invest in multiple areas. One is Angel investing (check with PG if he is willing to join you as YC partner :), one might be stocks of Google/AAPL (if I were you), Gold and some charity(increase your positive life Karma..as we call it in India)