I am thinking about upgrading my harddrive and wanted to know where can I go to get this done...I have been told that Apple doesn't upgrade the harddrives...Please someone advise....
go to ifixit. They have a tutorial on how to swap out the drive. Buy a good big 2.5 sata laptop drive (newegg, owc, etc.). Get yourself a SATA 2.5 firewire/USB external case from Other world computing. Put the new drive in it. Clone the old drive to the new drive using SuperDuper's free version. Swap the two drives. Now you have the old drive as a firewire backup.
I just got a stock 1.83GHz Macbook and will be doing a RAM upgrade soon and a hard drive update eventually, though possibly not until Leopard unless I find I need it sooner. I've never done any of that before, but it looks pretty simple.
Not sure if mentioned, but Apple does say that this is a user replaceable part. First time in Apple's history to do that, I believe... atleast in a notebook.