I havn't seen this mentioned else where but it may be of interest to any Folk in the Yorkshire Area, it seems to be well advertised in the local area.
http://www.number1events.com/nostell_priory_steam_fair.htmFor those unaware of Nostell Priory its about 20mins drive east of Wakefield, accessable both from the M1 or A1 relatively easily.
Unfortunately I'm unable to attend as I'm away but wondered if anyone else would be interested.