I've had Azureus 3.0.5.2 who could download from me at full speed, as well as utorrent 1.8.1 ones (I use UPC/chello hungary too). It is worth noting however, that the utorrent user also used Chello, in Austria. But what badschandau said is generally true, I have a 30-40k global torrent cap, except for rare, seemingly random cases.