I have not found the amount or quality of touring advice for Busch Gardens as you will find for WDW. It may be available, but I'm not sure from where.
We did have Fun Cards (Like an Annual Pass) for Busch Gardens Tampa last year. We spent about 8 days there so I might be able to help you with some advice.
The same basic principles that you use at WDW apply at all theme parks. Get there before they open, have a plan, and do all the biggies first. I recommend doing Rhino Rally first. It is similar to the Safari ride at AK, except it is shorter and humor is a big part of it. (Its more fun - IMHO). I recommend doing it first because it is a slow loading ride and you dont want to be in that line at mid-day. We would usually ride it about 3 times in a row with no waiting right at opening time. You do want to get a different driver every time if you can, because they are interactive and all have their own jokes a la Jungle Cruise at MK. They did introduce a Fastpass like system about half-way through 2004, but it is only for Rhino Rally. I dont know if they plan to keep it or not.
Another cant miss is the Katonga show at the Moroccan Theater. Its on par with any of the big shows at Disney. It is on the scale of Festival of the Lion King, I really enjoy it.
If you have any specific questions I would be happy to answer them.