Unix logging - ha!
I find the Windows Event log to be far superior to any Unix logging - which is basically a big text file.
As far as Exchange logging, I manage Oracle DBA's all day, and running out of space causes constant issues. This is 98% Linux/Unix based, by the way. It's no better than Exchange, and frankly I think is quite a bit worse. We routinely bill hours per month to maintain the logs properly. Exchange is much simpler.
== John ==