On a similar note, you cannot go wrong with an Ifor williams.
I own a GD105 (10foot by 5foot load area) Superb multipurpous bit of kit. I have the mesh side extensions on mine too, and will eventually have the tarpulin cover for my planned road trip to furnish a house in menorca.
Only problem i've had with it is the lock on the hitch has siezed, but no big drama really! Bought mine second hand of ebay, as has been said they hold their value well, so hopefully I wont loose much on it should i have to sell it.
Just really need to get a proper hitch lock for mine!
Not seen cheap insurance anywhere for trailers, i've been quoted up to £300, and when i'd need to spend £200 on extra locks it doesn't seem worth it.