My bit - i've got an SE and it was my choice when I bought it at the time, I could have bought a Sport but wasn't bothered about the LSD or tints, chrome pedals etc - it's down to personal choice, the SE is as good as the Sport IMO.
Auto / manual - as already said above it's where you live that suits the type of driving, I live near Chester and the manual is great for me. And to add to add the straight six sounds great when your driving the car hard and changing gears manually !
Mine's due for a 60k service soon, it's 3 years old and I have had no problems other than the corroded alloys which have been replaced under warranty.
I think for £6k you'll only get an S model, as said above pay extra and at least go for an SE you will not be disappointed.