Lol, this is going to be the exact opposite of the advice I usually give:
Use Internet Explorer and in the Internet zone set every security option to Enable.
Go to Google and search keywords that usually return lots of malware e.g. warez,cracks,porn,etc.
Start clicking on random search results. If ActiveX security warnings about installing things appear, always accept

There are a LOT of malware out there... here's a few you haven't named:
- GAIN (Gator Advertising Information Network)
- NewDotNet
...and the following fake antispyware programs can be downloaded and installed too

SpyAxe
AntiVirus Gold
SpywareStrike
WorldAntiSpy
SpyTrooper
Spy Sheriff
SpyBan
SpyWiper
PAL Spyware Remover
Spyware Stormer
PSGuard
Spyware Quake