This is in fact an old discussion which is already covered extensively.

One good reference concerning notaime (back in the year 2000!) was:

http://en.tldp.org/LDP/solrhe/Securing-Optimizing-Linux-RH-Edition-v1.3/chap6sec73.html

In the more recent days (2007), there was also a discussion available through Kerneltrap:

http://kerneltrap.org/node/14148

In any case, one could consider using the relatime flag by default to optimse disk IO performance not breaking application functionality.

Wiggum.