I am looking to replace some old tread with some new tread on a set of stock wheels of a 1995 S6. I thinking about something all-season and good for Northeast region winter driving.
Any opinions?
Thanks in advance.

how much are you looking to spend? and how well do they have to perform in adverse conditions?

Good Questions...
I tend to drive in adverse conditions only when needed. Except when I am to go north for a winter snowboard excursion and the weather turns bad. Vermont and New York can get a little hairy in the late winter months.
Money does matter. but I am more interested in speed ratings, handling as well as thread wear. A buddy of mine w/ a 1997 A4Q recommends Dunlops SP 5000 A/S. For the summer - I'm riding Potenza RE71 245/40ZR-17 on a set of Borbet's. On the stock wheels (these are the ones that need new tires) are Dunlop SP Sport 4000 A/S 225/50ZR-16.
I am thinking on spending no more than I needed, but I would aid the ceiling $130per. And thanks again for all your advice.

if you're looking for a high-performance All season for your stock wheels 225-50 16:

$100-110
BFG T/A HR4-2
B'stone RE950
~the RE950 have better siping then the BFG's and high milage warranty.

$110-130
Goodyear Eagle RS-A
Mich Pilot XGT H4
~about the same. the Eagle is OEM on alot of cars including previous A4's.

under $100
Sumitomo HTR 4
Dunlop D60 A2 JLB
Dunlop Sport A2
~the sport A2 have better siping then the D60 which have better snow traction. The Sumitomo's are between the A2's and the D60, good siping and snow traction and cost like $75 - bang for the buck.

I had RE930's on my first 93 S4. They had great wet handeling, but gave up some in the dry. Snow traction was better then average. The new owner is still using them on the winter rims, about to be their third season. So all and all the B'stones would be a good buy. The Dunlops are good also. The decision between the D60's and the A2's would be if you going to see alot of rain or not. If you're not sure then the Sumitomo's would be a good alternative to the Dunlops. Either the Mich Pilots or the Eagles would be my suggestion if you wanted something a little more then the Dunlops or the Sumitomos but didn't want to spend the full $130 each...

HTH

The price is $106 per and the reviews seem real positive. Any thoughts?

I've got Dunlop 5000 AS tires on my car. They're real quiet! They have decent grip but are fairly hard(320 treadwear rating). They are not an all-out performance tire but they work. I autocrossed on mine and they did okay and held up very well.