lol - yeah, Streamline is right. I've yet to see multiple people advise anyone to "CUT CUT CUT, you're plenty big enough already!" I have so far managed to resist! (only until winter though)
/me jumps on bandwagon with everyone else
Having said that, I'm inclined to agree with the masses on this one - you could definitly use some bulk
3500 calories a day would be good for growth in ur case, because ur trying to gain the extra weight so u can bulk up :] and u dont want to gain fat do u? u want to gain muscle, so basically said, u should eat healthy foods, but that doens't mean u cant have a hamburger/pizza like once in a while. just dont overdo it if u want to reach ur bulking goals i'd say