Speakers for $140 or less

Hi all,

I have a new project. I'm looking to create a home theater based on a pair of speakers available for about $150, preferably even less. Obviously not going for audio nirvana here, just something serviceable with relatively clear dialogue, decent bass. Really should be a floorstander. Is there anything in the used market that might be particularly good, or should I just go the garage sale route? It'll be driven by a mid-90s Rotel receiver, about 60 watts.

Thanks!