plob - you look to have a similar order to my original one and I would recommend you consider changing to an M Sport, especially if you consider going for 18in wheels and xline on the SE as sfax recommends. You will find that with a similar spec it will work out not much more as you have added most of the items that come as standard on the 30d M Sport.
The reason to do this is simple- resale. You won't get much of the money back for any of those extras on an SE but on an M Sport the list price is around £2k higher and so will return more on resale. It will depend on how long you intend to keep the car but if its only 2-3 years it wil end up costing you around £1500-£2000 more to do it this way.
In the rest of the world the M Sport is just a 'pack' like any other - but in the UK it is considered to be a separate, higher spec model.
Don't worry about the ride either - delete the M Sport suspension (no cost option) and stick with the standard 18s and you'll be fine.