If you're into electronic music (or just drum machines in general) these samples are fantastic. I bought them a while ago and use them all the time. For the most part they don't need much processing (if at all) to sit well in a mix. 
 
The website is still showing the full price:
 
http://www.drivenmachinedrums.com/
 
But I just got an email informing me of a sale price for the next 4 days 
 

This is the final weekend of the DMD: M.D. Collection sale.  DMDMD
is currently priced @ $37USD for the next four days only.  
HERE: http://tinyurl.com/ccx6pss

 
DMDMD features 2,733 samples taken from the Elektron Machine Drum
and TR-909 and is an expansion to Driven Machine Drums Strikes Back.

DMD M.D. Collection
available now for $37 ($10-off until August 1st)
HERE: http://tinyurl.com/ccx6pss

In addition, you can download his Casio RZ-1 samples for free on his Facebook page (it's a public page, no need to sign up or "like" it)
 
https://www.facebook.com/pages/Tonebuilder/281867371933222