We have 6 computers in our office. They all have no more than 10Gbs of user data on D drive, most average only 1-2Gbs of user data as it's mostly office files.

The comptuers are setup on Window Peer to peer networking & share some network resources like accounting files, databases, file sharing & shared printing.

We would like to do automated/incremental backups on a daily basis from all the computers to a one of the office computers w/ free HD space (...or ideally to 2-3 office computers' D drives (for redundancy) since several of the office comptuers' D drives have enough space to accomodate this...vss buying more HD space when so much is not actually being utilized properly). Incremental backups should transfer only files that have been changed since the last incremental backup.

Lastly, perhaps on a weekly basis, a full backup transfer to an external HD should be automatable as well from the daily backups.

I'm looking for a reliable & robust backup software....preferably free...but if it's the sacrifice of backup relability over cheapness, I'd go the paying route! Can anyone make recommendations on any particular program/version?