Funny thing about your comment re the 409 and a bit of performance. Three of us on the Jeanneau-owners.com forum site, were all saying a bit more power, ie about a meter taller mast, deeper keel or a iron/lead option, upgraded winches both on the deck and cabin top, with 2 sets of winches on the deck for HS and spins. Probably slightly deeper thinner rudders, 3 reef ability on the main to name a few things we all thought would be good to have, ie a super performance over the std P version, which really only has a folding prop, upgraded deck gear and spin option. If one is going to upgrade, lets do a serious UPGRADE to the PERFORMANCE of the boat!
I have not seen one yet.....there is a boat show in Seattle in a couple of weeks, hopefully will have a chance to gander at the 409 and 379.
Just got back from a 2 week bareboat charter of a SO 36i in Corsica and will have notes / comments tomorrow. Needless to say, everything you mentioned above is a must for someone that want's to have "fun" sailing one of these things.