Don't know what your budget is but you could try here - http://www.bridgehousemarina.co.uk. The new ones are definitely not cheap but they do have pre-owned ones for sale as well. The site itself is lovely - one of my favourites - and is well-placed for visiting various places in the North West.
------------- Tigermouse
I have a very temperamental personality - 50% temper and 50% mental
Hi Gordon - Where abouts are you looking? I see you are in the North West so you are probably thinking Lakes or North Wales at a guess? Lakes area can be very expensive - more choice and cheaper in North Wales. A lot of parks also have very little used caravans this year as sales have been very good. Haven sites are very good - but they tend to sell mainly new and fairly recent used models - so fairly expensive. If you were looking further south Park Holidays UK have lots of choice on the south coast & the www.static-caravans-forsale.com site will give you a good idea of whats available & prices.
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.