These are two posts I made in another thread that asked the same question this past week.
I just bought some JBL S36AWII's from B&H Photo for $249 with free shipping (they retail $499)for my father and although he is no audiophile he was blown away by how good they sound.
They are for his outdoor bar, pool area too and he couldnt be more happy.
I looked at some of the higher end rock speakers and thought they were a rip-off
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These Polk atrium 55's are also supposed to be very good outdoor speakers, and this is a GREAT price for them at only $179 I found on ebay for you (they retail for $329 and sell for like $250+ most other places):
http://cgi.ebay.com/ws/eBayISAPI.dl...ssPageName=WDVW