Cheap (or free) speed camera database for Tom Tom 5 Navigator?

[Hades]

I've just got Tom Tom 5 Nav for my O2 XDA Mini S (still can't get over how good GPS is on the phone). I bought it for direction finding obviously. But I'd like to put speed cameras on there too. I had a bit of a shock whn I looked at the price of the official camera maps (why are the UK charged double the price of every other county ffs?). So are there any free or cheapish camera databases which are compatible with TT5 Nav?

Thanks...

 

[Hades]

Thanks.