I wanted to call out one database tooling feature in NetBeans 6.5 that I think is pretty cool, and it's a little bit hidden.
If you execute a query and you get results, you can then do a number of interesting things with them.
Things like show what the CREATE TABLE statement would look like, or copy and paste the data you have selected (the paste format is hard-coded right now, but next release we plan to support CSV and XML output).
The one I like the best is that you can generate INSERT statements for the data.
Combine this with generating the CREATE TABLE statement, and it makes it really easy to hand your data set to someone else for testing or collaboration.