welcome aboard and welcome to the dark side ... we have cake!
if you could stretch you budget just a little bit more (around the £130 mark) you could get a new G&G CM16 raider. They are great guns, don't be tempted by the long ones, the short ones have the same range and are easier to move with etc
other guns worthy of mention is the G&G firehawk, super short, just as accurate, and they make one hell of a noise!
i have a raider L that is now a standard raider (too long for CQB in my view), and i have a firehawk