You can grab the ISOs here: http://software.opensuse.org/123/en
I suggest you grab the torrent and download that way. As of right now, there are nearly a thousand seeds for the 64-bit version and a bit over 500 for the 32-bit version, ensuring that your download will be very fast.
The release announcement goes over all of the changes, but some of the ones that I'm excited about are:
- Version 3.7 of the Kernel
- PulseAudio 3 (with better Bluetooth audio support)
- UEFI support (I haven't tested this yet)
- KDE 4.10, which is getting to be a very nice desktop environment
- MariaDB (instead of Oracle's MySQL)