You probably got it when you visited a malicious website. Some great tools are Malwarebytes, Super antispyware. I use Google Chrome since it has sandboxing reducing the chance of infection.
Mikey you'll be fine, a friend of mine got caught for the same thing with no past record, limited to time served and they withhold adjuication meaning they don't say if you were guilty or not.
I was tempted to buy a Ipad but there are lots of cons to it:
-single tasking
-No camera
-Touchscreen keyboard is quirky
-screen is a fingerprint magnet
1 Ghz processor
I'll wait for version 2.0 where all of this will be fixed, will beat lugging around a heavier laptop. What do you think?