The pre-order packages start at $14.99 and go up to $67.49, depending on how many frills you'd like to stock your account with prior to launch. You'll want to move quickly on this if you're interested, as the sale only goes through tomorrow.
Curious about whether Dragon's Prophet is worth your interest? Check out Massively's recent first impressions of the title to help give you a feel for it!
[Thanks to Dengar for the tip!]