What kind of complete system can you get for £100?

First or 2nd hand..

Is it even possible to include everything? (Monitor, Mouse/Keyboard)

a pentium 2 complete system you can probably get these for about £99

Read this weeks copy of Micro Mart, they do one for £75

also normally in micromart there is a advert for a recycled pentium 4 1.6 ghz pentium 4 base unit for £99

http://forums.hexus.net/showthread.php?t=26965

Micromart, as I ever recommend :)