[tragic312]

first off, welcome to DC. you have come to the right place to learn everything you need to know about WDW in preparation for your first trip EVER.
second, you picked a great time of year to go to WDW. my DH and I went to WDW in january of last year during my first trip and it was incredible. the lines are incredibly short so you get to see a lot of shows and go on lots of rides without waiting long. with the small crowds, you'll get to walk around and absorb all of the beauty and fun of WDW.
you're not dealing with the heat and humidity so that's a plus. as far as weather is concerned, when we went, Florida was hit with a cold front. so, the temperatures were around mid 50's to low 60's. that didn't bother us because when we left home, Jersey, the temperature was below 0 so we had no complaints. do bring your bathing suit because the water temperature is about 80 degrees in the pools.
if we go back to WDW, i want to go in january because of the small crowds. that's my thing. the smaller the crowds, the more we can do!