Hi!
Well done on your interview, don't know what they will ask in the interview but have some experience of interviews at other places. I'd try and be fully aware of all the roles of DH(T), also know what you are not allowed to do. Be familiar with DA. If you can demonstrate good manual dexterity, i.e by bringing some artwork/sewing piece or something like that, then bring it with you. Even if they only ask to see your academic quals, just take everything with you that you feel demonstrates a passion and commitment to becoming a DH(T). Let your personality show through, you have clearly met the criteria on paper, so let them get to know you a bit
:D:D:D
Best of luck!!!!!!!!!!!!!! Lets us know how you get on xxxxxxxx