[Chicken-users] Event Scheduling?

[Ozzi]

I'm looking to write a daemon that will periodically poll a HTTP server. Is 
there an event scheduling egg out there somewhere? If not, does anyone have an 
opinion on how best to implement such a thing?

I've considered using set-alarm! or thread-sleep!, or perhaps porting TIMER 
(http://www.xach.com/lisp/timer/doc.html)

Thoughts?

Thanks,

Oz