I shoot real estate for a magazine (freelance), and this past job, I was shooting 400 sq. foot furnished studios for a magazine, and found it hard to really get the "overall" interior shot because of my lens.

My main lens is an 28-80, but looking to pick up a wide angle lens or adapter. But I want something good (since a company will be picking up the tab). Ineed something that will give me a wide view without much distortion (like a fish eye). Any suggestions?