Another great area to look at, very close to WDW, is Hunters Creek -- a developed community with shopping, and lots of apartments, condo's and (unfortunately) identical looking houses -- but its a great up and coming community.
By the way, I wouldn't hesitate to live in Celebration -- its still a great community. Lots of Disney locals don't like it, but they don't live there. Its actually, while no longer owned by Disney, FILLED with Disney employees, especially white collar office employees. One of the problems is that people that moved there when they were already in their 40's are STILL THERE -- so there is very little turnover, and it has sort of turned into a retirement community instead of the vital younger professional adult/family community originally envisioned. Its very safe, clean, and well kept up. The high school is thriving and there is a very strong sense of belonging to the community. Its also relatively diverse, although almost exclusively upper middle class no matter what your color, religion, or sexual orientation.
There are some things that have declined...the community theater is no longer there - it didn't have enough support in the community (why would you go see a bad production of Annie when you can see the professional shows across the street or downtown on tour)...and though it was originally envisioned as a park-the-car and walk everywhere community -- everyone drives everywhere. Personally, I would eventually like to relocate here myself, but they aren't very pet-friendly...I have several large dogs, and intend to always have several large dogs, and the only option with those pets is to buy something which I would prefer either condo or apartment or rental house. For that reason alone, I might be heading more toward Hunters Creek.