Man, that's the reason why I love lifehacker. They constantly review and share stuff like this, free replacements for paid tools. They know exactly what's best for their readers. Well, they are also the killer to the owners of the paid tools.
I have already been on half of them, specially AVG for protecting my computer, Mozy for backing up my data, and Google Docs, alternative to Zoho, for documenting. Right now, I am loading reQall over on my iPhone, and will be remembering Gparted next time when I need to repartition my hard drive.