I'm sure there are more.
I'm looking for an application that will automatically save images to a local folder from a couple of scenic webcams overlooking one of my city's parks while it's undergoing renovations. The idea is to create timelapse videos of the construction.
The feeds update with a new image at the same url (so each image name & url is always the same) every 5 minutes.
I'd like to capture the images every 10-15 minutes for the duration of the project, so ideally any application I use would allow for scheduled capturing--bonus points if it can be scheduled so I can save images only during actual construction hours.
I do have a Synology NAS, so if someone knows of a package for that that would allow saving of images via a url, I'd be totally up for trying it rather than running something constantly in the background of my computer.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic