What kind of paintball do you aim to play? If it's just a monthly woodball team then you won't need all the pads etc. If you're aiming for tournaments you will definately need a better marker/equipment than you'd need for woodball.
I would advocate buying a second hand Angel LED/LCD or an older autococker over and Impulse, you'd probably get one for about half the price and since you're new it would make more sense than paying £500 for a marker only to find out 2 months down the road that you don't like tourny ball.
Basically, let us know your budget and what type of ball you're going to be playing primarily.