Radar Detector or Sat Nav?

[flattotheboards]

Having nearly been caught by a speed camera last night I have decided to buy a speed camera warning device. Now iv been looking at Road Angels and they offer exactly what i want, but for a similar price you can get a sat nav with camera locations on. So i was wondering what the best thing to get is.
Thanks in advance.

[flattotheboards]

I forgot to add that I wont really need a sat nav that much as i usually drive on roads i know.

[cossiemetro]

i think your find SNOOPER have the best camera database in the industry