I have someone in the family who has a recurring spyware infestation problem with his computer. This person, whom I will refer to as John, has a computer at his house which he lets his school-age kids use. John uses his computer mostly for internet browsing and for accessing his financial accounts online. Myself and other member of the family have in the past helped John remove spyware and other junk from his computer. We've come to the conclusion that John should get a separate computer just for himself. Further, John should put his computer on a separate, firewalled LAN so that even if the kids' computer is infected, that computer won't be able to infect or spy on his.
Can someone suggest a good hardware/software configuration for the purpose? If you know of specific products that you'd recommend, that'd be helpful too.
Thanks in advance.