Well, when you do get the chance to get them, I suggest getting Pokémon Mystery Dungeon: Blue Rescue Team for the DS. That's the first game in the PMD series, alongside Red Rescue Team for the GBA.
After that, I suggest you get Pokémon Mystery Dungeon: Explorers of Sky since it's an improved version of the second game in the PMD series. :3
The third game in the series is Pokémon Mystery Dungeon: Gates to Infinity for the 3DS, but I haven't played that game yet. I probably won't be playing it any time soon though, but I've already watched a playthrough of the game on Youtube. ^^
If you decide to try the game via emulator, just let me know and I'll help you set it up so you can play it on your PC. :3