Wow, if you're that much in doubt about what to buy, and don't really know anything about it, follow 4play's advice and try out AROS or UAE (amiga forever).
It's a lot of money to put down for an amigaOne or Pegasos computer, especially if you are not really sure what they're about.
Perhaps you could find a usergroup or something to that effect near you, so you would be able to see the computers and their operating systems in person.
Sincerely,
-Kenneth Straarup.
