I highly suggest you check out john berardi's "Massive Eating Reload" and also the articles he writes on nutrient timing. I just recently had to do a very precise bulking period of 6 weeks and the results were amazing. I am preparing for NPC nationals which are next week and I wanted to put on a little more mass before the show but without any significant fat gain. Well, to my suprise I was able to do it with minimal fat gain. I applied the nutrient timing princples because they make sense as far a hormone control goes. You can find the information at t-nation.com Good Luck and let me know how it goes.
Alex