See what choice of pumps your hospital team have to offer then weigh up the pro's & con's of each one, most are tubed pumps but there are tubeless pumps available like the Omnipod.
You still need your insulin pens as a back-up in case your pump fails or your having problems with infusion sets, these will remain on your prescription and you'll be told what to do in the event that you have problems with a pump.
If you want to know more about insulin pumps and the process involved in getting one on the NHS then have a read of the following:
http://www.inputdiabetes.org.uk/alt-insulin-pumps/