Id say a discount on a GTI is mandatory

I got significant amount off an ED30 , so Id expect even better for a GTI
Lots of cars around , MkVI due soon (although a while for GTI version), winter time , heading into recession
Id say haggle hard

Resale value isnt as good as the myth imho
Your choices are great but yes get Xenons, stereo ok if you plan to keep but aftermarket better if you want ipod etc
You may even wish to consider 2nd hand?
Let us know what you decide
Johno