Going from 3 to 4 boxxing....

[heffner]

Might as well grab a fifth account and add another shaman and tank. Case closed!

Honestly though, if you don't state your game play goals it's hard to answer. PVE or PVP? Both? Solo heroics? Solo end-game raiding? MBox raiding? Just messing around until Star Wars TOR comes out?

[Mokoi]

agreed. go for 5 and do not regret it.

If your only interest is pvp then OK 4 is fine, but getting new weapons and stuff might require a tank, and 5boxing is far more fun than 4.. take it from me, I was 4boxing for 2 years before i went to 5 and i regret not doing it a lot earlier