So 20 minutes later, I was done and running in the cloud. The beauty of this is how easy it was to write the worker to do what I wanted and then schedule it to run every day using SimpleWorker's built in scheduling.
Then to schedule it to run every day, I simply call:
tw.schedule(:start_at=>1.days.from_now.change(:hour=>3), :run_every=>24*60*60) # to have it recur every day
You can get the full source code here. Just clone it, change the config.yml and run enqueue_worker.rb to run it for yourself.
So simple. So elegant. No servers required. And did I mention how simple it is?