I have just installed our new black BT home hub(we had the old white one before) and I have to say it was really easy to do and our internet speed is now much faster than before :-)
It was free sasperilla,they phoned and asked us did we want the new one when our contract was about to expire.It looks much nicer than the old white one and takes up less room too.I just did an internet speed test,we now have download speeds of 3.2mbps when it used to be around 2.0mbps or less.