Anyone know of a Nintendo DS emulator to download to play pokemon games?

I have been looking for an emulater to play pokemon games. I miss playing them, but I don't have the money to go out and buy the games. So I was wondering if theres a simple website or way of downloading anything. Thank you.|||I use the no$gba emulator, and it seems pretty decent. If you Google-search "no$gba" it should pop right up.|||Well, we aren't supposed to provide you with links for the ROMs of the games themselves (it's illegal), but I can provide a DS emulator. I've given you two, you can choose with one sounds the best for you. I must also once again stress that downloading non-public domain ROMs to use with these emulators is illegal, and neither myself or Yahoo! Answers can be held responsible if you decide to seek them out on your own.