Here is a remix collection for Natalia Kills. I am a fan of both Wonderland and Mirrors. Mirrors has two remix CDs (not containing all of those below, but some).
Mirrors:
Omega Dubstep Remix
Frankmusik Obsidian Overkill Remix
Jeff T Club Remix
Wonderland:
PeaceTreaty Dubstep Remix
Natalia Kills: