Blizzard and fileplanet are partnering to have a 7 day, stress test, if your a member, you can download the client now, or wait, and take your chances to get in. If you want to suscribe it's $7.90 for the month, or something like that.

www.fileplanet.com

Not worth it in my opinion unless you have not been able to experience the game at all. I mean, theres something like 100,000 slots for the stress test? Are you garanteed to get in? Me, I've played a bit on my friend's account. Not all that much, but its been enough to hold me over. I don't think I would be very happy after playing a new character for 7 days, then not being able to play at all for another couple months.