Best $300 Speaker Used

My dad is finally getting involved in Home Theater. He has an Outlaw 1050 receiver and is looking for the best set of mains he can get for under $300 new or used to pair with it. These will probably be mostly used for home theater together with some listening to 50s and 60s rock and roll. Size is not a real issue here. I would imagine in this price range it will be necessary to get a subwoofer for full range sound, but if there is something out there that can do it without one that would be better.

I recommended he audition the Paradigm speaker line because of their excellant price/performance ratio. What other speakers would you recommend he listen to?