Noob questions

Hey there guys. It's been forever since I've downloaded a rom and an emulator so any help is greatly appreciated. Just wondering if there was an English rom out for Pokemon Black or White as all I have found is Japanese ones. Also what is the ain emulatorthat people are using now? Thaks in advance for any help.

Go here to download us and europe roms: http://forum.romulation.net/index.php?topic=53363.0
They work with the desmume emulator: http://desmume.org/download/

Thanks