Vista - Sharing a drive over a network

Hi everybody,
I have a drive on my main PC (D:\) which contains all my videos and music. I would like to be able to share this drive with my laptop so I can watch movies on my laptop without messing around with USB drives, but I can't find a clear guide anywhere. Can anybody point me in the right direction?
Cheers

\\computername\d$ would be the share name, but this is for administrative purposes.

Is your Media organised into folders?
It would be better and more secure to share the folders you need access to rather than the entire drive.

To browse a share by UNC path you could type the UNC Path into your address bar of any explorer window, e.g. \\computername\sharename

If you want to see a list of the folders the remote computer is sharing just browse to \\computername

If you wish to map a network drive to the share Right Click the Computer icon and from the menu select Map Network Drive
In the window that pops up, select an available drive letter and then type in the UNC path of the share you wish to connect to.

Hope that helps