Dinkar - 5:15 am on Apr 7, 2012 (gmt 0)

If you want to 100% safe then allow original content to crawl and disallow all affiliate catalog pages.

And don't forget to link your catalog pages from your original content pages; so you can get traffic to your original content pages for your affiliate products as well :)

One hint, if you want to index your affiliate content pages: Visit squidoo.