[Peterjohn]

Just a thought I usually keep a few over for seed but not this year with the blight problems we all experienced, IMHO its better this year to start with fresh certified seed as per WG's post above .  

Thanks for your reply, I think I will get seed spuds as I also had the blight problem, and had to lift the crop early. Better to be sure, as I might have problems with this years crop, using last years spuds.

Pete

[Trillium]

Aunt Sally, it's not cold winters that seed potatos want. Ideally, they need to be grown at high altitudes (over 6,000 ft) where summer days are warm and evenings are cool. This weather, along with altitude, keeps diseases and insect pressure low - aka, pests can't thrive.  Being pest and virus free, the seed potatoes have more vigor.
With a lot of UK flatlands and wet weather, blight is too common, you're better off buying fresh seed potatoes yearly.