A heads up, cursed.com is a good place to get betakeys.
HOWEVER, I heavily suggest on waiting until OPEN Beta to play. You can make characters now in hopes of getting beta goodies, but characters from CBT are often deleted in almost every MMORPG. It happened with WS1, so I can assume the same will happen here. (In other words, don't make a million characters and try to get them to level 50+).
"He who fights and runs away, lives to fight another day!"