If you are looking for a HT receiver (5.1 or 7.1)I would recommend the Outlaw 1070. If just for two channels Rich's recommendations are good.
For subs I would try to stay with sealed design. Usally won't go as low or loud and a ported design but, in general sound better with music.
For subs I would try to stay with sealed design. Usally won't go as low or loud and a ported design but, in general sound better with music.