Help: Speakers to fill Exceptionallly Large Room?


I'm trying to outfit a large coffeebar with a decent pair of speakers or monitors on a budget. The room is approximately 20 feet wide by 80 feet deep. My current plan is to place one speaker at the front of the space aiming at the bar and a second about half way through the space, again, aiming at the bar. Everything beyond the second speaker will be a "quiet" space for all intents and purposes.

Rules are that I cant use more than two speakers and they have to be wall mountable. I'd like the place to sound good, though I know it will be no acoustic dream, by far. Price range is probably $500-600, $1000 max. Should be relatively efficient, because I'll need some db's to fill the space. Any help appreciated. Thanks.
jaminsky
Don't fool around, JBL Everest 66's. They are visually a statement. However, at $60K for the pair, you may need another loan.
A Fischer table radio to be exact. They had a famous law suit the went the the US Supreme Court over Consumers Report's description of their sound. A British mag commented that it was a good thing that they hadn't seen ITS report. I can't recall if it was the one that said they sounded as if the tenor had stuck his head in a barrel of cotton wadding. My totally obsolete data retrieval system [aging memory] now recalls that they switched to plastic framed drivers in the past. The first ones were at least well made, the later ones, well everyone to their own taste.
Get a pair of DJ type speakers.IMO,in a business atmosphere,people are not that interested in how the music sounds.While lots of the speakers recommended above would be fine,why spend that much money on more or less,background listening.Just a thought.Good luck with you business.Here's a link to a site with a good sale going on.

http://www.cheapdjgear.us/Speakers_s/45.htm?gclid=CI389YrWqZ4CFQwJswodDFtdnA