A Really Cool Digital Alarm Clock  

my pick is
TO:CA 'wood' LED clock by kouji iwasaki. A modern look that is a twist on steampunk ideas. I loved it the first time I saw it.

Sorry
This on is not an alarm clock.

There are several variations of this one out there.
It's a nice combination of fresh / retro / modern. Try a Google search for "wooden LED alarm clock".
http://www.ubergizmo.com/15/archives/2008/11/triangle_led_clock_comes_in...

If you want something affordable
I suggest a 1970's Sony "Dream Machine" (white plastic cube with black face-- not to be confused with their cheesy, startreky updated versions). $5 at your local thrift shop.

I like,
the Digital clock/weather station that Starck did for Oregon Scientific. Has an alarm and the projection model is pretty neat.
Also, I know it's not digital, but the Tivoli Audio model Three has an alarm and has served us well.

Not digital, but can't beat...
Not digital, but can't beat a trusty old Braun AB1!

Poach; Yeah I know
there are variants, but it would be like buying a 670 knock off because I really wanted a tilt feature. I am not into knock offs and would just keep looking.

Clocky!
looooooooooooooooool.