I'll give it a week, upgrade my primary account to WotLK then start a death knight, I'm currently levelling a team with similar names for some RP aspect, when they get to 50/55/60 ish I'll leave them ready and waiting to team up with my new DK ofr a run to 70. After that I'll level my paladins to 70, then finally upgrade all accounts and start on the 70-80 content.