i just got some magic colours by hella, cant remember the website, dont think they look to bad!

I've bought some of them. Hope they don't effect insurance, because I'm not going to declare them 
unfortunately.....they will effect your insurance mate as they are aftermarket. Plus the lights say "colour magic" (or something on those lines) on the side of them to make it more obvious. For the sake of not being insured (having void insurance) its not worth not delaring them
If they are OEM then youre more likely to be ok
These Hellas may effect your MOT as well. I could be wrong but IIRC the tinted tail lights dont have any rear reflectors. You will need to add some to the rear of the car (on the lower bumper or something)