Your Mac Life, an Internet-based Mac radio show hosted by Shawn King, has announced its lineup for tonight’s broadcast (8:30-11:30 PM ET). This evening Shawn’s topic, which is somewhat of a tradition on the eve of Macworld Expos, is “State of the Mac,” which takes a look at the Mac market over the past six months and predictions on what we can expect in the future. Guests for the discussion include Andy Ihnatko, Chris Breen, and Aaron Adams, one of the original “switchers.”