Ebay, or here is your best bet for a Schwinn Approved FD. Make certain you buy one with the 1" tubing clamp. If you don't you will need to shim the FD to make it fit.
http://shop.ebay.com/?_from=R40&_trk...All-Categories
Cables are easy to replace. Ebay has lots to offer. Look for ones which match your originals.
http://shop.ebay.com/i.html?_nkw=Sch....c0.m270.l1313
http://shop.ebay.com/i.html?_nkw=Sch....c0.m270.l1313