Hi all,
I'm interested in upgrading the hard drive in my Gigabeat F40. 40 is too small for me now

I searched the forums for some threads on this but I couldn't find anything. Also the wiki only talks about upgrading the X60 drive. Basically, I just wanted to know if it's possible to upgrade the drive? What are some of the things I should look out for? I plan on reading up on the surgery beforehand. Anyone know what type drive this is offhand and any good retailers which would sell larger capacity replacement drives?