I also found that my PI tended to pull the same IP every time it booted- even though I couldn't get it to successfully set it's network configuration to static.
I was successful, however, getting it to automatically log onto my wireless network every time it booted.
I used the instructions on the raspberrypi.org website listed above to set up a crontab scheduled job to take a photo every minute. Initially I used their instructions just to test the function and made sure it worked. Then, I combined those instructions with some info on a crontab tutorial (located here) to set up a job where it would take a photo every minute from 7am to 6pm, every day of the week. This roughly corresponds to daylight hours in Minnesota right now.
The line in crontab ended up to be:
* 07-18 * * * /home/pi/camera.sh 2>&1
The first position "*" indicates each minute
"07-18" indicates hours 0700 through 1800, every hour (24 hour clock)
The third position "*" is each day (# of days)
The fourth position "*" is every month
the Fifth position "*" is every day of the week
I'm not exactly sure what the "2>&1" does....
After I had that set up, I shut the PI down, disconnected the monitor, keyboard and mouse, and taped the PI's camera to my sun porch window, and plugged it in.
I was able to both SSH and sftp into the PI using the IP address I had written down earlier. I used the standard Nautilus file manager in Ubuntu 14.01 as the ftp client, and PuTTY as my SSH client.
Tomorrow night I'll sftp in to the PI, and hopefully have a folder full of pictures to put together a movie with.