12 Easy Steps to install OwnCloud 7.0.3 on Raspberry Pi
ownCloud provides access to your data through a web interface or WebDAV while providing a platform to easily view, sync and share across devices—all under your control. ownCloud’s open architecture is extensible via a simple but powerful API for applications and plugins and works with any storage.
Instructions to install for Raspbian wheezy
http://pastebin.com/ktb8NK3p