Snow Tires, again, need advice ASAP!

[TM]

Hi listers,
I'm getting snow tires this week and need some advice ASAP on
the following three choices:

Dunlop Wintersport M2
Vredestein Wintrac
Nokian NRW-H

I'll be getting these in 225/45R17 and in Philly, we hardly get
snow- some sleet and ice is more likely, but it tends to stay pretty
dry on the major roads as it doesn't usually stay well below freezing
for long.

I need these tires to last, I don't want to wear them out in 2 seasons,
so longevity is a factor, as well as dry road performance- that's why
Blizzaks and Michelin Alpins are out, as well as any other multicell
compound tire.

I can get the Dunlops for about $400 (take-offs, virtually new),
the Vredesteins w/ 2500 miles for the same $400 or the Nokians new
for about $600.

Which is the best deal? I can pick up the Vredesteins, need to have
the others shipped.

Thanks.

Taka