Holy crap that's a lot of money worth of networking equipment...and probably some overkill, I might add. Three Cisco Catalyst 3100's? I doubt you'll be needing VLAN and ATM support at your LAN. Additionally, why spend so much money on an enterprise switch like that, instead of spending *less* on a 100 Mbps switch?
I can't vouch for the other switches...
Why don't you have them rack-mounted, and running? Even if you're only running a few PCs personally, it'd be 1337 factor ++ to get them all up on a rack...and maybe throw a 4U rackmount server up on there too, just for fun.
Like this one here...that's a nice rack:
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