I'm in the process of updating the HT which has remained untouched for the past almost six years. I've gotten a new Panasonic 58" plasma and two new DVD players: a Panny BluRay and an Oppo. The rest of the system has remained the same. I've got a DD/DTS HK receiver, Audio Refinement 3-channel amp, JMLab front and center speakers and NHT in-ceiling surrounds. I decided against putting in a sub since my fronts (JMLab Electra 920.1) could go down pretty low and the new baby and a sub probably wouldn't mix well. With the new TV and DVD players, the weak points of my system are the relatively ancient receiver and the lack of a sub. I'm looking at getting an Onkyo 705 receiver and an SVS PC12-Plus sub. The problem is I'm pretty much tapped out due to the TV purchase. Which upgrade should I prioritize: the sub or the receiver??