I like this one (headset):
Mad Catz F.R.E.Q.7 Dolby 7.1
and
this one (speaker set):
Logitech Z906
I own however:
Logitech G35 and Logitech AudioHub. Those above do not fit to my budget, they are waaaayyy to expensive fo me.
Note:
During games, I like to wear headset better than using speakers. No reason, just personal preference.