You are having a tech do it for you to keep your warrentee? If not, save some bucks and do it
yourself. You will see a difference in speed and drain you battery faster. How much ram do
you have? I would upgrade to the maximum before you do the HD. Check some Apple oriented
websites for some speed tests. The closet you will get on comparison is looking at the
difference between Powerbooks. Try http://www.xlr8yourmac.com or http://www.barefeats.com. Hope
that helps.
-maestro