My 3 min job:

Nice and descriptive eh?
Anyhoo...
Standard 2 Meg BB.

Into IG 1800 router. (With Wireless B)
The switches/server are into the UPS.
All connected via ethernet.
<<< My PC - See thing on left.
Flatmates PC - AMD64 / 1GB RAM / 6800GT (possibly another 6800GT shortly)
Flatmates womans PC - Barton / 1GB RAM / 9600Pro
The Cisco switch syncs time from Strathclyde Uni.
Common Viri/Trojan ports disabled.
Lots of other tweaks - Although I only know what half of the IOS does.

(And is QUIET!! Swapped out the fans with PAPST's)
Oh, JetDirect for the HP Printer.
Would get pics... But flatmate cannot find his camera and I sorely want one.
In fact - I now know what I want for Christmas!