Currently Nikon equipment as shown in my sig below. At the time of our last WDW visit, I had only the D50 and the lenses shown. Let me hasten to add that there is a LOT more to it than just having a certain brand/model of camera, and I'm still very much a learner and nowhere near being able to take full advantage of the capabilities of the camera gear I have.
There are some STUNNING pictures posted here everyday, made by folks with much less capable (and much less expensive) cameras. A lot of it is just having an eye for what makes an impressive photo, and a lot of it is practice, practice, practice (and the ability with digital of shooting tons of shots in order to cull out a handful of keepers, which is my personal modus operandi).
~Y