Not a great choice new at that price, but a lot of second hand stock in that price bracket depending on what you're looking for. Need more detail as Clive says before we could think about an answer for that question. I see my old one is just over budget on the dealer forecourt if you wanted an immaculately looked after twin axle, end washroom 6 berth.
There are options - Venus range from Lunar and Elddis Xplore if you are looking at the smaller models as these just about come within budget. The smallest Adria Alteas do too.
Alternatively, have a look at Sterckeman vans. They only have a single dealer in the UK - Freedom Caravans in Stafford but there are a few quirkier and thought provoking layouts among them. http://www.freedomcaravans.com to have a look at the website, but best to head there to see what they have in stock...