Re: Ice Tube: can I use a different vfd?
Why not just put together your own clock using one of the smaller 'duinos, like a Teensy, some buttons, a piezo for the alarm, and that display? Use an Ultimate GPS module and your clock can set itself. I've already posted Arduino code on Github that supports the Ultimate GPS and does Automatic DST adjustments (for the Alpha Five clock).
Or drive it with a Raspberry Pi and it can set itself from the 'net, and display pretty much any info you like - weather, Tweets, stock prices - you name it!