My fiance and I are getting married when she gets finished with school in April and we are planning on going to Disney World for our honeymoon. I have been looking at all the different hotels, options, extras, places to go, things to do, ect and it's just getting so frustrating, not magical.

Neither one of us have ever been so we don't know what to expect or what things are better then others, ect. Basically, we have $3000.00 (that we saved for the last 2 years in change)

and are driving from GA. We plan to stay for 7 days so we are thinking we would stay in the cheapest hotel (we checked out All-Star Resorts) possible to save money for other things. We will be out doing something all the time, so we only need it for sleep and maybe a free breakfast, if they have that. We would like to be able to jump around to all the parks so we were going to get the 5 day + park hopping deal. We are also 27 so we would like to take in some night life as well.
1) Are the more expensive hotels worth it?
2) Would May or Sept. be a good time to go?
3) Is Travalocity or similar a good method for booking the trip?
4) What other things should a young newly wed couple do?
5) Are there any ways to save money via coupons, good places to book deals, or anything else we can do?
6) How far in advance do we need to book our trip?
Thank you in advance. I really appreciate in help to make our trip memorable and exciting!