Going to Disney, then Tampa for Busch G. & a cruise--how should I get around?

[IowaGirl]

Wow, I could really use some advice here.

My kids definitly wanted to go to Busch Gardens, some Disney and a cruise, so we are doing it all.

We will arrive Aug.3 in Orlando and we will rent a car at the airport for Aug 3-7. The cruise departs from Tampa Aug 7, so:

1) Will I be able to rent a car in Orlando, and drop it off at Tampa, only to pick it up 5 days later to get back to Orlando?
Or is that just two different ressies?

I also need it Aug 11-14 to get back to Orlando and go back to Disney for a few days, could I combine that as a week plus a few days, or do they count each seperately?

2) Is there a huge charge/difference in price for drop off at a different location?

3) If I drop my car off at a Tampa rental agency, will they shutttle us to the cruise ship? Just wondered if anybody out there has done this before I call around to see if they will drop us off.

4) Anybody know of any basic web sited like the disboards for cruising? We opted against a Disney cruise (I think I'm gonna get the wet noodle here) and went for Carnival instead. We have never cruised, so we thought we would get our feet wet with and inexpensive cruise.

Thanks All!