there is another thread on this from a few days ago
http://f10.5post.com/forums/showthread.php?t=553504
As I mentioned on there .... ive gone down the route of buying extra alloys and going to be putting the tyres on .....
Winter tyres are just starting to creep into stock at about the same price as summers ..... for me its just choosing the optimum time to buy .... leave it too late and the prices rocket !
Cheers
M