|Sue you'll get a lot of junk email if you leave that address there, or anywhere else on the net.|
Foxit Reader (free) is a much smaller pdf reader if you want to save space. It does all that Adobe does. If you use Foxit you could uninstall Adobe Acrobat 5.0 and Adobe Reader 9.4.1.
Adobe Shockwave is mainly used for playing their games, so it depends whether you do so.
I doubt you need Adobe Air as it is mainly for developers. You can always download it again if you suddenly need it.
The Flash Player stuff is quite small and it enables you to see certain graphics when online. Probably worth keeping.
Having a lot of things in Add-Remove is only important if they run all the time (thereby slowing the start and running of your computer. Large things also matter if you are stuck for HD space - the sizes are usually given.
We all live on a ball.