Your choices are as vazandrew cited above, however, using iCloud does not in any way preserve your photos. iCloud Photo Library is a syncing service not an archival service, so once you turn it on, then any device or computer that is signed into the iCloud Photo Library with the same iCloud account can update, edit, or delete the photos in the iCloud Photo Library, and the updates will be pushed back to all of them.
Sharing your most recent photos with your other iOS devices and your Mac is best accomplished by setting up and signing into iCloud on all devices and computers that you want to sync with, and then turning on Photo Stream:
http://www.apple.com/icloud/setup/
iCloud: Set up My Photo Stream
My Photo Stream FAQ - Apple Support
If you want to import your photos to your Mac, you can do so by following the instructions in the article below:
PHOTO IMPORT IOS TO MAC/PC
If you want to start sharing photo albums or individual photos from your iOS devices or your Mac with yourself or others, you can use the iCloud Photo Sharing service once you set up your iCloud account:
iCloud Photo Sharing - Apple Support
Cheers,
GB