I bought all my (15) apple trees from Butterworths, and three years on they are all still growing and hopefully starting to fruit soon. I also have some that I bought in 2001 for my Edinburgh garden, planted into half barrels and they have moved with us down to the Borders:
These four are: Grenadier, James Grieve, White Melrose (cooker), and Discovery.
Have found that my plum trees (one bought in 2007, two in 2008) have so far not even flowered, but are growing ok.
We are about 100m up - can't really do feet - and we are fairly exposed, so have not tried any pear or similar yet. Also as Fleecewife said, rasps, especially autumn ones, are brilliant here, also have currants and gooseberries. I am in the process of giving up the strawberries, too many slugs and mice...