Hi, I've got to post this link for the inforad:
http://www.datatool.co.uk/consumer/products/products/index.php?product=inforadGot mine last week from .........Yes i know eBay! (I do have a life out side of eBay, really!) They cost £99 reccommended retail, got mine for £75, you get a years subscription free updates, then I'm not sure but i think its £25 yearly, or if you want you can pay £49 within 30 days of registering the unit for lifetime updates! (for the sake of your licence its a bargain)
It consists of an LED that sits on one of those flexible stalks, place it somewhere next to your speedo etc. ( where you can see it!)
it flashes green when its aquiring a fix, then steady green. When you go into a speed restricted zone ie camera it will go red and if your above the limit for that camera it will flash red. All settings can be done via your pc, things like how much notice you want, how bright you want your led etc. One of the good points about this is the warning is given by time as opposed to distance, so for example it will give you 20 seconds warning as opposed to warn you within 500m obviously comes into play when your speed is closing in on prison time( which it obviously never would be

) I tested it on a local stretch of the A303 and was suitably impressed.
You will need to hard wire the unit into your electrics and the more you update it obviously the more informed you will be. The system is updated via what i can only describe as a blanking plug, this holds all the data, its this that you plug into your pc via usb and then it plugs into the base unit thats on the bike.
Lastly theres the GPS reciever, about the size of the old 50p piece it needs to be in direct line of site of the sky as much as possible i.e Not under your single seat cowl etc, mine is on the yoke.
I will get some photos on here asap.
Any questions, please give me a shout