Cheap HDMI to VGA Convertor
One issue with Pi s is that there is no VGA output and since a lot of old monitors just have VGA then that's a problem when trying to cobble together cheap kbd/mouse/monitor
I just had one of 1080P HDMI Male to VGA Female Video Converter Adapter Cable For PC DVD HDTV AC33 | eBay delivered today and it seems to do what it says on the packet.
It certainly worked first time when I connected it to my Pi and the VGA input on an old 15in Dell LCD Display :)
Now there may be some issues with it as it obviously needs to draw power from the Pi but since the HDMI spec is for 5V and as long as the 5V on the RaspberryPi HDMI connector is directly wired to the 5V main source then all should be fine.
Anyway - its worked for me and made it dead easy and cheap to use a PI with an old monitor (which is prob going to cost us geeks zilch as we have 10 in the garage) but more importantly will make it cheap to use in schools with existing kit if the Pi takes off.