have a read of the articles and reviews and then ask for some advice. a lot of what you buy will depend on how much you want or can spend.
you can get going for 200 or 3000 pounds its up to you, however, I would suggest you look at the lower price range until you gain experience and actually know what you want to do.
ill give you a few ideas.
alarms. fox micron m around 20 quid each.
here
reels. okuma will get you going and are ok and cheapish
here
landing net. look around for a cheap 42 inch net
here
normal bank sticks will be good enough to get you going
unhooking mat .
here
these are not always the cheapest option, however, each link is to a different shop so u can have a good look around.
for cheap rods do a search on this forum.
carping can be a never ending pocket drain so be careful