Got 100x belgian corks and 100x wire cages from Morebeer which arrived the other day.
The standard Italian 2-levered corker fits these corks, e.g. the ones that Country Brewer or other LHBS sell. I tried it in the shop with a Duvel bottle which is about the narrowest neck you'd have to deal with and it worked fine. Was easy enough to stop just before the end of the leverage so it sticks out half an inch or so.
Have my Peated Tripel going at the moment, needs to finish primary ferment and be CC'd for a couple of days and then i'll bottle it in some corked bottles - now just need to find some champers bottles which i am canvassing local pubs/clubs for.