Gotta Catch 'em All

Perhaps someone with a minor compulsive disorder like myself shouldn't be playing games of any sort of game where you can level up with experiance.
I've only just manage to escape the addictive jaws of World of Warcraft. Not only does it have the usual experiance system but it hits you with numberous ingame factions where you gain reputation by completing quests or killing certain mobs. Evil!

screeny
Nice hat....

Now I have Pokemon Diamond perminately slotted into my DS. I seem to be hell bent on catching every Pokemon in the game. I've even caught all 26 Unown which opened a cave where I could catch the ! and ? Unown. They don't do anything... just sit there in a PC. But I had to have them. I am now planning on getting Pokemon Pearl so I can get the unique Pokemon from that game. And after a little research on the net I discovered that having LeafGreen or FireRed in the GBA slot unlocks previously unavailable Pokemon. Oh will it ever end?! Nintendo are offically the Devils spawn.

new help me