Ubuntu 7.04 is out and the ubuntu.com website is struggling to cope with the traffic.
Apart from the typical CD version, you can download the DVD version of Ubuntu 7.04. The ISO file is about 4GB, available in x86 and AMD64 flavours.
Here are some mirrors (some may not be updated yet)
Feel free to add more mirrors in the comments.
At this stage it is preferable to download the DVD ISO using the bittorrent protocol. The same URLs above provide links to torrent files.