Welcome to the DISboards!
I went to the first SW weekend this past May (I was there 5/15 - 5/20) purely by accident. I had planned teh trip in November, and it was not my intention to be down there for SW weekend (actually, I don't think they had tehm the year before) but i got lucky! I am a HUGE SW fan! whiel i did not get to see much (the vacation was for my grandma who has Parkinson's & not really for me) but I am glad I went. I did not find out about the weekend until maybe Fed. or March. You might want to make ressies for around the 2nd or third week of may, and play it by ear for a few months.
You might get more help posting this thread on the theme park board. Maybe one of the mods can move it over.
Again, welcome!