I'm looking at backup options and was looking for opinions on these progs as they seem to be the best (used BE10 previously)

Currently I have 1 2003 server with Exchange and SQL on it but will be changing to 3 servers to split the load.

I want a backup software that I can purchase now, which is scaleable for when I migrate the tasks.

arcServe is supposed to be able to be centrally controllable so that I can have all the data saved to one backup media instead of having to have 3 seperate backups (was going to use eSATA and some SATA drives instead of tapes) has anyone tried this? is the same applicable to SBE12?