Would probably do you well to audition some speakers first. You could also look at the Klipsch Reference Series, Ascend Acoustics, JBL Studio, and EMP Tek. If you go with something like Ascend or HSU, you have enough money to get a good pair of subs, this is probably what I would lean towards.
I would go with this:
Ascend CMT-340SE L/R
Ascend CMT-340SE C
Ascend CBM-170 SE SL/SR
Then pair that with either 2 Power Sound XV30s, 2 SVS PB12-Plus, or 2 Rythmik FV15HP (You get a discount when purchasing these with Ascend speakers)
Denon AVR-1713 | EMP E55Ti | EMP E56Ci | EMP E5Bi | BIC F-12