Hey Maquis, to answer your question to play on the US servers you'll need to have bought a US version of
WoW. Apparently if you buy the EU version, it will only allow you to play on the EU servers. However, after a bit more searching I found this:
go into the world of warcraft folder and open the realmlist.wtf file with notepad
change the first line from
set realmlist eu.logon.worldofwarcraft.com
to
set realmlist us.logon.worldofwarcraft.com
save
this should allow you to connect to US servers rather than euro servers
Hopefully this would works, but it was posted in late March of this year, so it *may* not still work this way.
Edit:
Apparently you still need the verification code from a US version of the game to get a US account, which is the last thing you'd need to be able to play with us on T-horn.
__________________
Aestryd 80 Prot Pally / Epimetheus 70 Feral Druid / Yuusei 74 Enhancement Shaman
Camsmule 70 Fury/Prot Warrior / Tamrissa 70 Affliction Warlock / Aegyn 70 Holy Priest
Shyff 70 Arcane Mage / Indrus 62 Combat Rogue