Spidey4fun offers his Spidey4fun, (obviously), suit for $700. You can get it in either red/blue, or in black. And then for another $80, you can purchase a suit with printed webbing, but with urethane spiders on the front and back. I've got some pictures from his site and an email that you can look at if you'd like-
Front and back of a fully printed suit, (red/blue)-
Black Spidey4fun-
Spidey4Fun suit with urethane spiders, (red/blue)-
Black Spidey4fun-
And he also offers a few different comic-style suits, but it looks like you're looking for something based off of the movie.
The next level above those suits is the full-urethane webbing and spider suit. I believe they run for $2000, so that definitely runs outside of the price range you've posted.
Another option would be to spend $1000 on a kit from SpideyPlanet.com The kit comes with everything you need to make a suit with urethane webbing and spiders. You get all the pieces, and then follow the provided instructions to fit all the parts of your suit together.
I'm sure there are some other alternatives out there, but what I've listed is what I've been considering doing myself. I've still got a little bit of saving to do, but this lists all of the paths I might take in purchasing my first Spidey suit