Required:
Got a 10mb(+) internet connection?
Is it Symmetric?
Do you only use it On-Peak? (6am-6pm)
Do you have room for either a 1u server or a mid-tower?
Do you have a spare network socket and a power socket?
A free static (external) IP?
No port blocking?
No bandwidth caps?

Optional:
Are you close to Ipswich?
A freeAPC remote power switch?
A free KVM-over-IP?

If you can answer yes to all the above (required) can you drop me a PM, I colo a server in London Docklands and it's getting expensive. Hopefully someone's got a nice server room with a nice internet connection