Alv Faria has designed a bank of 30 instrument presets. There are lots of very useful electro-percussive sounds and some interesting SFX sounds. The bank can be downloaded from http://thefxbproject.wordpress.com/2011/11/22/kairatune-vsti-alv-faria-preset-bank which is a site for free preset banks for virtual instruments.
PlugINdex site for audio plugins reviews and news, provides a bank of 20 instrument presets. The bank is available at PlugINdex under Downloads/Presets.