Tanso, I really can't recommend Natasha highly enough. She's a brilliant CM, a complete professional, and a lovely, warm person too.
We travelled all the way from Hackney to take DS there.
She's not cheap, but as a student you'll get 85% of your childcare fees paid if you're full time (as long as they haven't changed the rules since last year).
FWIW, when you apply for funding, it's really worth speaking to your student advisor at college to find out what you're entitled to as a parent, as we've found that the people on the phones at Student Finance England really aren't used to dealing with parents and gave us advice that was completely wrong, on several occasions.
For example, both my DP and I are full time students. This means we are both entitled to some extra money because we're parents - but the SFE people told us (several times) that only one of us could apply for this money (not true!) and that one of us should apply for some money based on the other one being a dependant (also not true as we're both students!). We sorted it out in the end, but only after our student advisor got involved and it took until December to get the money!
So, if there's anything you're not sure about WRT what you should be applying for as a parent, I would advise speaking to a student advisor at your future college.
Don't rely solely on the advice SFE give you, they can't be trusted IME!
HTH