best low priced bookshelf speakers


My son-in-law is looking for a set of under $200 bookshelf speakers for his outlaw audio r2250 receiver. Any suggestions?  I have an old NHT sub zero subwoofer for him but no speakers.
jjjaker
Thank you everybody.  There was a bunch of really great recommendations.  I'll pass this info to him to use to upgrade.  Meanwhile he bought a pair of NHT super one's and is pleased with them.  We'll see how they do when I add my old NHT sub zero to the mix.  As an old audiophile I hope to entice him into listening to many different components.  He is a musician and is developing his direction.  Thank you all again!
Please let us know what he thinks of the NHT SuperOne speakers 
Also, how do they match with the NHT Sub Zero subwoofer.