Logitech 2009 PC speakers

The Z323 ($69.99) comes with a subwoofer.

Priced at $69.99, the subless Z320 speaker system will probably be the best-seller in the line (a lot of people don't like dealing with subwoofers even if they provide extra bass).

The Z523 comes with a subwoofer and costs $99.99.

The white version of the Z523.

The Z520 ($129.99) sits at the top of the line and features a "amplified design for clear, natural acoustics."

The same Z520 speaker system ($129.99) from the front.