Gravefruit Sound
How about breaking the chain of dark music and melancholia with a bit of reggae. I stumbled upon Gravefruit Sound on Facebook even though the local stations are said to have picked up their hit song Szabad leszek (I'll be free). It's quite catchy.
[audio:http://sesam.hu/wp-content/uploads/2011/06/08-Szabad-leszek.mp3|titles=Szabad leszek]
The best part is that their 2009 album Kéz a kézben (Hand in hand) is downloadable for absolutely nada from their (very amateurish) site. The package comes with reasonably good ID3 tags and an acceptable cover image for the 256kbps mp3s.