Fighting the content-scraper and spam bots

Are you using anything on your forum to fight back against content-scraper and spam bots?  I started revamping my website last weekend, and I installed SMF.  I have already been targeted twice by (I was spammed once).  I ended up banning anything from hostnames  * and *.de, and I installed honeypot bot traps (don't know how successful these measures will be).  I was just wondering if you are doing anything special here, or if anyone else has some tips for blocking the bots.

I think after darkfrog switched to the hardest captcha mode the spam pretty much stopped…

thats the spam thread:

Hey, thanks for the great suggestion (I didn't realize I could make the captcha stronger).  I've set to the highest mode now.