If you want something to download ahead of time, download the test client, at
http://patch2.nevrax.com/ryzom_test.exe
This already has most of the content of Patch 1 in it. When Patch 1 is finally released on the live servers, it is easy to convert the test client ot a live one. All you need to do is go into the file
client.cfg in your Ryzom folder, and delete the line that looks like
Application = { bla bla bla }
Once you connect to the live server (after Patch 1), you should get a much smaller download this way, then if you connect with the regular client.