Well, it's a little premature to book, but I'll tell you what I have in mind.
Venue 1: Clean, nice and new, size unknown, next to minisupermarket, pub and chip shop, no obvious nearby accomodation (means drive/taxi) 2 miles to town centre, £60/day tops according to website (unknown full weekend.)
Venue 2: State unknown, size unknown, next to Sainsbury's, 2 miles to town centre, hotels in short walking distance. Price & weekend unknown but will be similar to above.
Venue 3: 10 miles out of Banbury, conference centre. Taxiing/driving required, £250 for weekend package (TBD) but small benefit of attached museum, will be staff hanging around(?) and museum area (separate for conference area) will be open to public.
I have some research to do, as you can tell.
But if sjaak's coming, then we should lay on the dancing girls, disco lights and hot- and cold-running toilets.
V.