I have a Gore-Tex cycling rain jacket that kept me dry all winter and it worked well for insulating layers to keep me warm. For rain pants I used the ones from REI, adaptable to any sport, and I got them big enough to wear thermal underwear and winter cycling tights underneath.
Some cyclists get their rain pants cheap off of eBay; they purchase rain pants for golfers. I don't like to buy anything off of eBay, so I am merely passing on what others have told me.
I've met cyclists who swear by the Burley rain jackets. I think TE sells Burley.
Darcy