JBL is a step down from Athena. Depends on your budget. For the Athena price, the only ones I think would be of similar quality for in walls would be and of these:
MURO M-60
MURO M-80
MURO VI-38
www.bicamerica.com/IN WALL PAGE~.htm
That subwoofer is fine at that price. You must put it in a corner though.
Get this center if it will fit. $125 or less. Nothing comes close at that price.
Venturi
DV62CLR-S
Try Shopzilla.com for prices (or any other seach engine you're familiar with)