My friend bought his mum and electro acoustic guitar a month ago, and it was about 50 to 60 pounds, electroacoustic, cut away 6 string, and had 'Spider' inlayed on the headstock. Does anyone know where I could the same guitar from? Or does anyone know what make it is (Searching Spide Guitars on google got me nowhere)?

Does anyone know any semidecent electro acoustics for less than 100 pounds that i can knock about on?
In my opinion you'd be better getting one without the electronics. You'll get more guitar for your money without.

As to what to buy, I'm afraid the definitive answer is to go to your local shop and play every guitar you can afford to buy and make your decision based on what you like.