It was quite a hassle, thanks to Mike (previous owner of bladehost) for permorming the bulk of the trasnfer. DNS took about 12 hours which was better than I expected, we had several problems which gave us headaches but at least we're here now!
Actually seems faster to me? Has to be expected, we're on a top of the line site5 server
The site was never "down" so to speak, it was taken offline and then backed up, this was to stop any new posts/members being lost on the transfer. We just had to wait until the DNS changed before opening it up to the public.