£200 just isn't enough money to buy anything worthwhile new. Entry-level business projectors start at approx £320. But this is entry-level, not midrange or top of the range. Small portable business projectors range in price £320~£1200.
If £200 is your max budget then something used would be a better option than the really cheap and awful Chinese projectors advertised on Ebay for £180. Trust me, they really are money down the drain.
If you're serious about getting a projector then drop me a trust message. I have some "new old" stock Philips projectors with very low hours.