Zeus Trojan

The Zeus Trojan has been stealing usernames and passwords on computers that run windows.  The Zeus Trojan then goes into your banking accounts and illegally transfers money out.  This is not the first of this type virus/trojan to steal money from banking accounts.  Here is the big question, What can you do to stop this type of criminal activity from effecting you?  The simplest and most effective means to prevent this from happening to you is to buy a cheap computer and use it only for online banking and purchases, keep it totally isolated from any other online activities, especially email.