get a tippmann 98 as a basic marker second hand. They are indestructable and with a bit of extra cash spent on them will have full auto modes of fire etc.
Alot of people here will say get an ion or save ur cash get an ego £200 second hand etc but as your budget is half that , get a tippmann 98.
Oh and u will need a set of googles as well vforce profilers in my opinion the best there is. based on cheap replacement lenses and performance.
I have an ego (which breaks from time to time) and my 98 backup marker has never let me down.
if you buy a 98 second hand they hold their value second hand. so u can sell it on to a mate who is starting out and u can get a better marker when cash permits.
First off don't think that a Tippman 98 will be full auto, it won't, and even if it did that would make it illegal in the UK (I don't want to go into too much detail but thats the bottom line).
You may wish to upgrage your trigger to a response trigger which has a piston that kicks you trigger back out for you once you have fired off a shot much faster that standard which can lead to increased rates of fire.
UK ions have two firing modes as standard, semi (one trigger pull = one shot) and ramp (if you maintain x balls per second it will shoot 10bps) but still NOT full auto.
Secondly, £150 is not half of £200!!
For £150 you should be able to pick yourself up an Ion and hopper second hand.
Does your local site run off compressed air or Co2?
Co2 will freeze the circuit board inside an Ion thus bu@@ering it up. So you would need to get your hands on an air bottle before you play, unless you can borrow/hire one at your local site.
An Ion would do for either scenario or tourny style play. So is a good all rounder and very upgradable.
Tippman 98 is more suited to the scenario scene and like the Ion is very upgradable. This will run off Co2 or air, the decision is up to you.
Again you should be able to pick up a Tippy and hopper second hand within your budget.
Anything you are unsure about just post up and someone one here will be able to help out.
Jnr.