I remember your mentioning that, and that you did work for your mom.
I've been in transcription for 20-plus years, and I love it. Never does a day go by that I don't learn something new.
The field will change quite a bit in the coming years, with voice recognition and such, but it's a good and interesting profession.
My mom likes it cuz she gets to stay at home and be here when my little brother gets home from school. I can type fast but recently I've had problems with my wrists so it takes me a lot longer to get done :( Typing for short periods of time isn't a problem but after about half an hour, my wrists start hurting.
I suppose there is transcription people in the UK but I cannot say I have come across them only people that do Dictaphone work at say the local council in the word processing pool not as I assume you and Ilovew mother are professional transcribers.