Tunnie have a look at the ML merc link it's nice and well equipped
I've heard nothing but bad, bad, bad news about these. Apparently they're built in the Americas somewhere, and build quality is terrible.
Personally I wouldn't have any off-roader unless I was a farmer or similar, although some people do quite enjoy looking like a complete pillock (hence why there's a market for X5s and the travesty that is the cayenne - what a dog sh1tting on an otherwise admired badge).
It does make me wonder... the classic comparison is the X5 verses an equivalent engine/spec 5-series wagon. In every point the 5-series is better: faster, more economical, better handling, more space, looks (subjective, but I think the only person who ever liked the look of the X5 was stevie wonder!), cheaper.... Although if you're a drug dealer then there's a definite cred involved with the X5