Could we get relative alarms please?

I've always wanted relative alarms. For example, I want to sleep for an hour. Right now, I have to eyeball the watch (or task switch), compute stuff like an hour 45 minutes, set an alarm, all with red eyes.

I'd like a quick way to set an alarm in relative terms. On NT, I use AT to schedule alarms because it takes relative timing, e.g. one can AT +1:00:00 Alarm.exe (the plus makes it relative). I'm thinking CLI alarms are a bit odd (though I'd love them) but a GUI like Alarmed could be useful, perhaps as a type of alarm?

I would also love presets for that unambiguous date thing. If i want to wake up tomorrow at 7 or Monday at seven I have to do math date with no calendar in sight. For example, date should have a pre-selection popup or a special popup that includes presets like "Tomorrow". It's organic to set an alarm "Tomorrow at 7" not 15th of 3rd month, 2010.

And finally, it would be nice if (assuming this is within the scope of this app) to define alarms, custom-wise. For example, have a command line as an alarm preset. I could get a beep.mp3 and "mplayer /beep.mp3" (whatever) and name it "beep" if I want it to beep every hour, a wakeup alarm isn't always best. (ETA: I know it has command lines, I was suggesting presets)

Well I have a few more but that's basically what's been grinding me about alarms. I wish I had a quick popping app on desktop that does "new alarm" and I'd have three scrollbars, one for day (Today, Tomorrow, Wednesday, Thursday - since today is Monday, tomorrow is Tuesday - and after a few days (2-3), it goes on as 15, 16, 17, etc), the second would be hour and the third minute, ideally with 00, 15, 30 and 45 at the top, followed by 01, 02, 03).

Then it would be easy to add an alarm for tomorrow at 7.