Hi MDR, this is a dangerous game to play on here... reading reviews on this forum bumped up my options list significantly

My thoughts:
DCC - Love it, use it everyday (well it's always active, but I mean switching!) I alternate between comfort for more sedate drives, and sport when I am giving it a few beans (and there is any kind of corner or roundabout.) I think it's very effective and would most likely chose again.
Pan roof - Was great in the summer months and I like having the sky above me (glass closed) in winter. It's pretty cool for the starry skies I get around here. Could live without it but would definitely miss it.
Standard Nav - I like the convenience (just jumping in the car and going) but it's not the best nav I've ever used. Rerouting can be suspect, especially in London, and has occasionally suggested 'Non-HGV lanes' when there is a perfectly good A road in 100 yds! I would probably think about using a phone and a nice holder next time, unless the options are better and more reasonably priced.
Winter Pack - No brainer for me, the heated seats are awesome in this weather and were even handy for both my wife and I in different times during the summer due to back pains!
Dynaudio - Box ticked for life as I'm a bit of a sound snob and the stereo upgrade is the first thing I look for on any car! Can go louder than I possibly want whilst maintaining clarity and a warm solid bass.
Keyless - Really really like the convenience of keyless and would chose again. Accessing stuff in the boot of a locked car is a breeze too.
Sport & Sound - This one is only relevant to the GTD, but love it and would chose again.
Anything I regret not getting?
I would really like the intelligent headlights, that maintain high beam whilst shading oncoming cars. I don't think we can get this in the UK though(?), in which case I can't really regret it

Edit - forgot the reverse camera, useful for the money and handy for bay parks.