Didn't see the cross post before...
Logging is good, m'kay :)
I've used kiwi in the past and if I recall correctly you can set it up to capture the logs and zip them up somewhere safe at the end of the day.
If you still think that it's too much info, take some of the messages out. "no logging message XXXXXXX"
At the present I believe that I'm getting a bit more than 100megs per pix per day, get's quite cumbersome at times but we've got it to the point that it get's logged, gets compressed, gets backed up to tape and gets sent off site. I used to take out some of the messages because of the size of the logs but found myself in a position that I needed to do some forensics and didn't have the information that I needed. IMHO diskspace is much less expensive than not having your logs.
Wil my 3¢