Which of the above mentioned would you say is worthwile for gameing and movies on your PC.

consider you already have a 5.1 home therter.

and if you could please make recomendations for each catergory.
here i will go first

1. 2.1 ??

2. 5.1 ??

3. 7.1 Creative Labs Gigaworks S750 (hands down the best!)

like that