You should login and watch the video (required).
After this you have plenty of time until you decide to take the exam.
BE WARNED - It is no walk in the park...a lot of study will be needed unless you are a networking guru (which i am not)
From memory you have about 90 minutes to run through 77 questions...if you dont make it the first time you need to wait 7 days for a retake
There are a lot of materials out there...most on solarwinds sites or thwack but there are other sources too...people who have taken he test and decided to review it.
Thank you very much Darryn! Just took my CCNA and JNCIA cert and now reviewing CCNP materials and Solarwinds (on youtube), the answers you have given sums it all up. Ill try logging in with the provided logon name and password and will try the exam this coming Saturday. Wish me luck