So who is your current FTTC provider - is assume it isnt SKY?
Just because FTTC is available in an area doesnt mean that SKY offer it - they may have capacity issues in the exchange and things get complicated if the FTTC is supplied from a different exchange to the voice - this is quite common and the SKY approach of insisting on taking their unbundled line rental with BB means that FTTC requires an MSAN slot in both exchanges.
Ex <n>ildram , been to SKY MAX - 15,225 Download
BE Unlimited - 21,000 Download 1,200 Upload,
Moved house, now BE Unlimited 6,500 Down, 1Mb/s up - gutted!
FTTC Cab enabled 30th July - expect full 80 / 20 - BT Infinity ordered, install date Friday 10th August! BT didn't turn up - now 17th August