Can't see any problems in doing so.
You can find the aerodrome charts including approach plates for all approaches into United Kingdom airports
here.
Weather condtions must be legal VMC which as you know vary for different airspace categories.
Minima's don't really matter as you'll be in VMC conditions. BUT you must be able to look outside and indeed ATC will be expecting you to be looking out for other traffic.
They may break you off the approach if their workload gets high. Also if you're on the ILS under a VFR clearance then you may have to "giveway" to traffic on Base legs etc... ATC normally give you plenty of warning though.
As Vintage ATCO says give ATC plenty of warning if your current vector / track along the procedure will put you into cloud and SUGGEST a heading to them that will steer you clear of cloud - otherwise ATC might give you another heading that could also put you into cloud.
Best wishes,
Charlie Zulu.