You should buy a new desk. Every time I see your setup I cringe, not because of the Macs, but because of the desks. They just make your setup look much worse in my opinion.
Heres a nice one for cheap:
http://www.target.com/Mission-Desk/dp/B001P1XYS8/ref=sc_qi_detaillink
Otherwise, check Craigs List. You can get great furniture for cheap there.
I 2nd this notion.
I agree with both of you. I would like a nice big corner desk with a full "L" of shelves that cover everything and would give me a lot more space for my coming 2 extra flat screens and my Mac Mini.