Apple's PowerShare software (the server component that can be used with the PowerTalk client software) will no longer include a copy of System 7 Pro in the box, effective today. The server software will require (but will not include) System 7.5 with PowerTalk installed. Some sites use PowerTalk in its basic peer-to-peer form, which requires no server, but others find the PowerShare server useful. [MHA]
Single Time Machine Backups
Tired of Time Machine running all the time? You can turn it off in the Time Machine preference pane, but still initiate a single backup by choosing Back Up Now from Time Machine's menu bar icon. Of course, your backup is much less likely to be up to date, but Time Machine won't be taking any resources while you're trying to work.