Argh....time to die.
I'm so ashamed. I can't believe a made a geek joke. I want to kill myself. Entourage capitalises the initial letter of a new sentence, so my response to a message sent by a colleague was:
"On 03/07/2008 13:40, "XXXX XXXXXX" <xxxx.xxxxxx@bossblahblahblah.uk > wrote:> Grep -i brain upgrade |head
At least Grep -i works in OS X, unlike 'proper' Unix. :) "
<goes into a dark room and cries>
My life is over.

You could lose the pipe (and thus a process) and instead do;
* grep -m 10 -i brain upgrade
... or, in long argument form (which is more descriptive);
* grep --max-count=10 --ignore-case brain upgrade
This is assuming that your head defaults to 10 lines of output.
Have I missed the point?