You have a nice start there...
What are you going to use it for, do you need a receiver?
I definitely wouldn't get a Home theater receiver for music, in my experience the less in the audio path the better...
Are you just hooking the turntable to it? or cd player, cable box, ipod, ect?
If it were me and I only intended on using the turntable with the system, I would go with an amp that had a volume control built in...
In this case I would go with 2 apa150s and run them mono to each bookshelf... that will give you $300 watts for $318 not too shabby... Plus you can set them up for auto on when they get a signal they turn on...
If you are going to use multiple sources like cd player, ipod ect... then add one of these or something like it, I have used this one, 0 distortion, its just a switch...
Amazon.com: TCC TC-716 6-Way Stereo Source Selector; BLACK VERSION: Electronics
heres the amp...
Dayton APA150 is a nice A/B class amp, puts out 75x2 {4ohm} or 150X1 8ohm
Dayton Audio APA150 150W Power Amplifier 300-812
emotiva miniX is nice too but not bridgable and 50wX2 8 ohm... I have one it is very nice, I also have the daytons, and just got the dayton/carver {same as dayton just says carver on it instead}.... Hope this helps...
If you want to go tube, I like Jolida {some dont like them, but I have awesome luck with them and I like the sound, plus once you have a bunch of systems its good to mix it up a little...} I have a 202brc in the bedroom hooked to a pair of red satin tekton lores, that amp glowing with all the lights low, and the crystal clear lores playing some soft slow jazz, its a different feeling than the regular systems I have that are just a box with blue leds...
http://www.musicdirect.com/p-98662-jolida-fx10-integrated-tube-amp-blue-demo.aspx not sure what size listening room you have or what levels you listen at but this amp should get your bookshelfs to 90db at 6feet away... Not too shabby... But it is all personal taste and wants..
I have this one
http://www.musicdirect.com/p-59698-jolida-jd202brc-integrated-tube-amp.aspx hooked to these
http://www.tektondesign.com/lore.html and I put the dac up half way, the pc up half way and cant turn the volume knob up 1/4 with out getting uncomfortable, but the lores are very efficient...