Use tor, and torbutton (for web surfing). Also, you might want to use an encrypted file system, and have thermite nearby, so you can fry your harddrive! Just kidding. Tor would be fine, as they would have a very difficult time getting your inf0z then.

In all reality, they would rather spend time trying to bust big grow ops, rather than small ones. But if they were bored, maybe they may look into you! Doubt it, though. Just make sure on the internet you are as anonymous as possible. Fake all the information you can, especially your IP address (by using proxy networks like Tor).