How well would I be able to pick up cross country skiing if I'm decent on alpine? I'm actually thinking of getting a pair of cross country to play with, not sure the regular or metal edged type though.
Depends on if you're going to do Nordic or skate skiing. You won't have any need for metal edges with Nordic.
The two types compete for space on groomed trails. Nordic is a peaceful and quiet type of skiing, with the skis running in parallel groves, where as skate looks more like speed skating but with skis instead of skates. It's more like racing.
With downhill experience, you would have no trouble transitioning between the types.