How much time do you have to work with? To perfect a recipe?
If you are REALLY a new brewer, I would probably start with pineapple juice, but I'm not an expert on brewing either. But I know taste.
I'm thinking, with the slight tartness, you'll want to go one of two ways: Get a very clean light beer, in which case I would maybe start with a pilsner recipe.
But a Pilsner tends to be somewhat bitter and dry. If you really want more pineapple flavor- and this probably gets trickier- you might try a more malty beer, such as a Belgian Ale, but often these are slightly dark, with roasty flavors that will probably not go well with pineapple. I'd probably go with something like a pilsner. In any case, the beer should have a color which is reminiscent of pineaple, just to complete the image, so try to stay light. And remember, extract brews tend to be darker anyway, so be extra careful to preserve the light color.
As for hops, I strongly vote that you use Cascade as your aroma hops. Cascade has a citrusy aroma that will go very well with pineapple.
EDIT TO ADD:
Someone just said Simcoe. I think that may be even better for pineapple, though I haven't tried them personally.
Minimize the use of pineapple though. I think you can get something very close without using a lot of adjuncts. Remember, "chocolatey" beers usually don't have chocolate, "coffee like" beers don't usually have coffee. Oatmeal stouts usually have oatmeal though. What I mean is, you don't necessarily have to add the target food to your recipe in order to get the target flavor.
Best of luck!
