Well, hello there Zappy!
Welcome to the forums of PokéCommunity.
If you haven't already, you should really read
the rules and
FAQ. That way, you can avoid some trouble.
If you would like to see some of the teams people have here, might I suggest you check out the Strategies and Moveset's section:
Strategies and Moveset's
There is also an entire section devoted to Diamond, Pearl, and Platinum:
Diamond, Pearl, Platinum
I'm sure you'll find happiness in both of those areas.
I hope you contribute a lot to these sections, and hopefully start posting all over PC!
Just remember, if you're active it's easier to make friends. ;D