Disney cruise line- potiential offer

Hey all. So I had an interview with DCL October 20 2009. It went great and the hiring managers were awesome. I received a call october 30th stating DCL wanted to extend an offer to me but I needed to fill out forms allowing Disney to do a background check. That wasn't an issue as I have a super clean background. I received the paperwork Monday night and faxed it so HR would receive it first thing Tuesday morning. I was advised all paperwork was received and once the background check was performed an official offer could be made. So long story short how long does it typically take for Disney to do a background check? What's the average turn around time? I really want the job and truly I'm very anxious to start. The hiring manager said that if they have asked to do the background check that's a great sign they want me and all that needs to clear is the background check. Any input would be appreciated. Thanks