(advanced) Question about making fast lan connection between PC and LAN-Hard drive

Someone wants to get a new drive that is external and only has a lan
connection (1 gig).

The computer does have a 1 gig ethernet on the motherboard...

however the ROUTER that will be connecting the 2 is only 100MB ...

So what would happen is that the connection speed would drop to 100mb of
course since that's the router speed.

So I thought of getting a new 1 GIG SWITCH and connect everything as you can
see in this diagram:

http://img410.imageshack.us/img410/2135/graphic1gm3.jpg

I suspect that the speed connection between the router and switch would be
100mb
and the connection between the PC and HARD DRIVE would be 1 Gig...

can someone tell me if my thoughts are correct?


thank you!