seems that the full 1.5 gig patch have been released for the EU-realms now aswell.
anyway if your havign some problems download the patch with the background downloader, note that you can just open:
World of Warcraft\cache\BackgroundDownload.torrent and just open it with your normal .torrent program and download it that way instead.
also for additional mirrors you can check
http://www.wowwiki.com/Patch_mirrors**edit**
also note patch is planned to go live next week being the 15th okt for eu-realms and 14th okt for us-realms
note that addon sites will be heavly loaded at this time so using for example wowaceupdater from wowace.com or wowmatrix from wowmatrix.com for updating addons is recomended.
Personaly I perfer wowace seing as most addon developers update their addons there first. also it seems to be working alot faster then wowmatrix does.