I was a huge fan of Altec Lansing speakers for a long time, especially since my Dell came with a hair that had a subwoofer. Of course, this was eight years ago.
I picked up a pair recently and they started receiving radio stations, which wasn't great but expected since I live next to a radio tower. I returned them and bought a pair of Logitech Z340s and have been happy ever since, and no radio stations can be heard.
The best I've heard though, have to be the Klipsch 2.1 speakers or Monsoon ones are very nice. Still, for the buck, Altec Lansings and Logitechs are nice.
Just my two cents,
X.