Yes, I'm sure you'll need to remove some links. There are basically two schools of thought: big-big and small-small. Big-big gives you the shortest chain that will fit; small-small gives you the longest chain that will fit -- yes, I know, it's confusing.

I use the big-big and it's never failed me. Take the chain and *without* running it through the rear derailler, size it so that it matches up, then add one full link. Cut the chain, run it through the derailler cages, and attach. See Sheldon's page: http://sheldonbrown.com/derailer-adjustment.html#chain