That depends on if you are elligible for any discounts, and how flexible you wish your ressies to be. If you book a package, you owe $200 right off the bat and must pay in full by 45 days before arrival. If you have access to discounts (
AAA, passholder, etc.) you may wish to book seperately, plus you control when you buy the tickets (even if you just buy them online the day before and pick them up "will call" you will still recieve the advance price discount) and only have to make a 1-night deposit, with the balance due on arrival. You can also cancel within 5 days of arrival with no penalty - the modifications are stricter with the package.
There is no real benefit to booking a basic room/ticket package - most of the time the price is just the rack rate room and the ticket put together, no savings involved.
No matter what you decide, don't book on the website. It may be convenient, but it's known to be a hassle - and if you do find you need to make changes it is much more difficult than if you booked by phone. Call CRO (407-W-DISNEY) and book with them - definately shop the website, but when it's time to book trust me and save yourself the headache later : call. Try during the late afternoon/early evening, depending on where you live - I'm on the east coast, so I have a great time getting through around 8-9PM.
Good luck!
N.E.D.
PS - I assume you are not going during late Aug-very early Oct when they are doing FREE dining - in that case, I'd have to say YES go with the package, hehe