The cheapest controller (fancy sound card) I use is this. They make another one with only two channels of outputs. For a lot of monitors you are going to want something like that.
Getting a 2.1 system with monitors isn't going to be easy with your budget, but finding something you like is important, just remember you are going to need a controller if you are looking at monitors, for the most part. Even though they are powered, some cannot play without a proper connection.
Getting a 2.1 system with monitors isn't going to be easy with your budget, but finding something you like is important, just remember you are going to need a controller if you are looking at monitors, for the most part. Even though they are powered, some cannot play without a proper connection.