plasma is mostly for TV.. don't get it for a PC.. get a PC monitor instead.. the standard flat panel LCD Computer maonitor alows for a much higher resolution, giving your the sharpest images possible, used for surfing the net and writing emails..
a plasma monitor? Thats basically using a plasma TV as a computer monitor. Newer plasma TVs have DVI inputs or Svideo for connecting to computers (if you don't have DVI there are cheap VGA converters readily available)