What is the best software for syncing two folders. I do not want to create backups, I want to sync the folders bidirectionally. It would be nice to have two options to choose from (1) a free solution (software or a batch file), and (2) a solution that costs money. I have done a few searches on Google, but I'm looking for user experience.
I'm running Windows Vista Ultimate and Vista Enterprise. I have two separate scenarios; (a) I need to be able to sync two PCs over a LAN, and (b) I also need to be able to sync with an external drive.
Thank you in advance, Jon