Making the most of Expedits in our Home office/gym

The door of our home office/gym faces North and the window faces West. The computer desk has to be along the wall where the door is as that's where all the computer/telephone/internet etc access points are.

We've got a couple of Ikea Expedit bookcases and I would love to hear your suggestions as to where they would look best... I've come up with some possibilities but would love to hear your suggestions as always :)

• An Expedit on either side of the computer desk - although I would love the symmetry of this... I am unsure of spending so much effort on something which won't be seen from the door *shy*
• An Expedit on either side of the window - some of it will be seen from the door, but the fit will be tight
• Both Expedits along the North facing wall 
• An Expedit along the North facing wall and another one along the wall where the door is (next to the desk)

Some more info:

• The room is 4.3m long and 3m wide
• The ceiling is 2.7m high
• 300x300 bulkheads all around
• The window is 2.4m high (goes all the way to the bulkhead)

An Expedit on either side of the window

An expedit on either side of the desk

What do you think?

B