Headgaskets, cam sensors, headgaskets, exhaust flexi joints, headgaskets...
Suspension as you rightly say is common across the range, bushes wear out, some sooner, some later, same with shocks.
Engine is pretty easy to work on as loads of room around it. Waterpump requires changing with every cambelt change... ignore this at your peril.
Cam sensors can do funny things to the autoboxes. Replace with genuine only.
Manual cars are a bit more responsive, but relatively rare, and late manuals are Euro 4 compliant, which might help with tax rates. Auto is responsive enough, same AR25 as your v6s, but you need to wring it out abit... not so good for overtaking. The manual is better as it goes almost as well as a 2.5 auto.
Oh, did I mention headgaskets...

practically a service item... be wary of cars with no/little history and 100-140k under them... budget for headgasket/cambelt/suspension rebuild.
Don't buy one for economy, unless it's a manual.
Hth
