Hi bunnydeluxx, I was in a similar position to you a few months ago and I decided to go for clip in extensions rather than the glue in ones and they're brilliant! They're dead easy to put in, you just fit them under your layers of hair, and the clips snap shut so even if someone pulls your hair they're unlikely to fall out.
I bought mine from a shop in Leicester for �18, plus �4 for the clips which I sewed on separately, and I still have half of the packet of extensions left, so it was a right bargain!! The shop I got them from specialised in extensions and afro carribean hair products, and I see lots of similar shops in other cities around near me. Also, the superdrug and peacocks in Leicester actually stock hair extensions exactly the same as mine!! They're getting very popular so keep your eyes peeled. hope you find something!! xx