I just got a 98 Contour GL with steel 14" rims and I have a couple of questions.

1. If I stay with the 14" rims which size tire is the best to get (185/70, 195/65 or something else?
2. I was looking at either the Bridgestone Potenza RE950 or Dunlop SP Sport A2. I drive mostly NYC/LI stuff and am not overly agressive. I do want the tires to have good Hydro resistance and Snow handling for upstate skiing. (Yes i read tirerack review, can decide between the two)
3. Does anybody have stock steel or alloy 15" rims to sell, locally.

Thanks,
Jason