There the guy everyone seems to use down at Brinsworth medical centre (on the brow of the hill opposite BOC gases), costs around £20
ph: 0114 230 3444
mob: 07976 810786
Theres usually a queue of drivers outside the door, Ive used him, and so have many of my mates.
The only word of caution I would say about this guy, is dont walk out the room until youve double checked the form he has just filled in, if in doubt ask, as he`s notorious for making ■■■■ ups due to rushing. So a lot of people end up paying him, walking out the room without checking the form, sending the form off, only to find that DVLA send it back due to simple errors