If you are going to start a business first thing to do is register a Name with Companies House, then you will have to let the taxman know, also pay any N.I. contributions owed. Finally unless your are going to turn over more the 30K a year stay away from LTD for now, its just to much hassle, just make sure that you invest in a decent public liability insurance policy and be very specific about what you will need cover for.
Nothing ventured, nothing gained, Good luck mate