Hi keith, i am in full time employment and am in the first year of my phd. i dont work in law, but my area of work is related to policy. the advice i would give you is to choose an area very close to the area you work in, eg if u r in commercial law then a study within that field rather than e.g family law etc. be prepared 2 reduce your social life :) as it definately borders non-existent (maybe not as bad as that but..) and it depends on the university but part-time = a longer period to do it i.e. virtually impossible under 4 years. i am sure u have considered most of this, i would say if u got the interest go4it!