I bought one from Ashcroft. They sell other stuff you'll need, such as the bracket that holds the shifter in place. Their stuff comes from England but gets here really fast- like in 2 days.
There is also a thread around here featuring some other options for auto console.
Current fleet: '85 Ninety 3.9 V8i Auto SW, two Discovery 1's (one for my Nephew, one for my Niece),'07 BMW 335Xi.
Past Land Rovers: '96 Discovery SD, '00 Range Rover HSE, '04 Discovery SE7, '07 Range Rover HSE, '08 LR3 SE7.
Past fleet: '89 Classic Mini, '83 Porsche 911 SC Coupe, '89 911 Carrera targa, '96 911 Carrera 4, '07 Toyota FJ Cruiser, several Minis.