First, welcome to the boards! You won't be able to do all of EPCOT in one day, but depending on how early/late you are there and the size of the crowds you should be able to get a lot of it done. Future world opens before world showcase, so I would suggest getting to the park as soon as it opens and head straight for Soarin' as the lines get very long later in the day. While you're over in the Land pavilion, if you're interested in riding Living with the Land it should be a walk on, then I'd do the Living Seas and of course Journey into your Imagination. I'd then head over to Mission Space/Test Track and grab a fastpass for whichever has the longer wait and then depending on the lines I'd jump in the shorter of the two standbys. I would skip Universe of Energy unless you wanna take a 45 minute break from the rain, but seeing as you only have one day I'd just do the main attractions. By now world showcase should be opening, I always start in Mexico and walk around clockwise but thats just because I love margaritas and I don't feel like I'm in disney until I have one. In Mexico they have the grand fiesta tour that is usually a walk on, and you HAVE to try the Margarita bar inside the pavilion, they have a huge selection of different margaritas, the blood orange and the jalapeno are delicious! They also have a stand outside of the pavilion that sells a great fiesta frozen margarita. Moving on to Norway if Maelstrom doesn't have a long line I'd do that, if it does you could grab a fastpass or just skip it. Next up China, I avoid the movie because it makes me extremely sick, but inside the pavilion is beautiful! If you have a sweet tooth, I'd stop at the Karamelle-Kuche in Germany, if not you could always grab a pretzel, they are delicious! In Italy you could grab a quick bite at either the pizza place or the wine cellar, and they have a wine/margarita stand. I'm going to sound like a horrible American, but I hate the American Adventure show so I tend to skip that unless I want a nap in the a/c. If you like Sake they have a tasting bar in Japan, if there is a performance of the drummers or the candy maker I'd stick around to see those. Next is Morocco, I tend to just walk past through it pretty quickly. In France you could check out the newly renovated bakery for a snack. They have a film, but again it makes me sick so I've only seen it once. You must try either the Gray Goose or Grand Mariner slush they sell in the kiosk, both are delicious! If you like music, check out The British Revolution in the United Kingdom. Finally you arrive in Canada you can watch Off Kilter as you pass. Now you're back at future world, on your way out of the park you can ride Spaceship Earth.