Mozilla Firefox and thats it...
Proxomitron to block ads, a good firewall, and a good AV.
You shouldn't need some "spyware remover" as spyware shouldn't be on you computer first

For all your program needs, let down download.com and zdnet.com, go instead on sourceforge.net which is a great site for open source program. Ok sometimes its a pain to search because the search engine can't restrict the search to windows or linux or mac or... but that way you will NEVER get spyware on your computer
