For what it's worth, BendRealEstate.com is not a registered domain. We can, therefore, suspect that 60 Minute Logo's example is just that, an example. Have you tried to contact 60 Minute? They may be a bit expensive, but true desire has always been able to overlook the cost of indulgence.
What is it about this design and catch phrase that attracts you? What changes would you make, if you were to modify it for your own purposes? The rhyme scheme (mouse/house) is not copyrightable. The image of the mouse is very clip-art-like, and tethering it to the stylized house element with the cord is neither novel nor protectable. And about that house image: can't help but feel that the flimsy, unbalanced structure is about to collapse under the weight of that heavy (thick) roof. The house can be vastly improved upon, the mouse can be better rendered and the catch phrase can be modified, maybe to even better suit your site's needs. IMO, with a little work, incorporating these elements into a tighter, more balanced package would make for a really nice logo.
Anyway, if this sparks a discussion of ethicality issues, that's all good. What is a rip-off? What is a legitimate use of ideas and elements of ideas from other sources?