I'm planning on riding the Melburn Roobaix on Sunday June 29th and looking for riding company - I havent registered, but will ride the course (...my usual MO).
Ride is from 11am - starting point is yet to be announced (Hawthorn Velodrome in previous years - might change obviously), ends at Brunswick Velodrome - will update once I get more info.
For newbies, you can ride any old nag - while people do it on their blingnagos , its tough on gear: the essentials are good tyres, make sure everything is bolted up tight, hang on and dont fall off. Its not a race, just a ludicrous thing to do with like-minded individuals.
Standard disclaimers about weather apply - mud/grime is OK, but actual precipitation and I wont show up.