In reply to Maz83x:
Personally, I have some really great military boots, cheap, full leather, warm, good fit, sturdy, Vibram soles.. And they're an absolute b*gg*r coz they have all the upper lacing via D rings rather than hooks. Can't get 'em to give a good snug/tight lace-up.
I also have some boots only with eyelets at the top, which are better but still not ideal for getting good lace tension.
Hooks IMHO are the best.
Go to a shop that has a good selection of all kinds of boots and fell/trail shoes and see what you like. Also get them to check what your issue us with tripping over and to see if they can help you.
Make sure you get boots that are a good and comfortable fit, else they will not help to enjoy your walking. It's worth a bit of money to get this right; consult a good boot shop fitter about this.
And don't buy low-cut trail shoes or fabric or cheap boots and then expect them to keep your feet dry in English mud, dew, slush, mizzle, puddles, streams, bogs... And so on.
Welcome to hill walking!