Universal/Sea World

Going out to Orlando in April and my little girl wants to do all things Disney and we have decided on the best tickets for us.
The only other parks we will visit are Universal Studios and Sea World for one day each.
Is there a combi ticket that a allows this or do we need to buy two seperate tickets for one day admission to each park - if you see what I mean
All help appreciated [msnscared]

There is not an offical tickets that covers Universal and Sea World, however if you use the link above for Orlando Park tickets they sell a package which includes disney, Universal and Sea World.
Not sure if this is suitable for your needs as only 5 days at Disney but probably worth taking a look.