Hello, newbie here as well, just got the 650D last week. I'll share my (limited) experience.
What I learnt is that reading can only get you going, but you really need to experience shooting and the different conditions you'll be shooting in.
What I did was, after much reading about how good (and cheap) the 50mm f/1.8 was, I decided against getting the kit lens and opted to buy the body + 50. Then after a night's out shooting, I quickly realized that 50 isn't exactly 50, its more 50x1.6 on a cropped body. I went out with a friend who has D600, and I could see the difference in the field of view. That's not to say the 50mm is bad, you just need to know how to use it (and "zoom" with your legs). :bsmilie:
I guess I do feel a tinge of regret not getting the kit 18-135 STM, but have now settled for a Sigma 18-200mm F3.5-6.3 II DC OS HSM as my zoom.
My advice is : whatever you have, just shoot!
Cheers!