I am a big fan of the older 50s and 60s saws made by Powermatic or Delta. As in woodstoves heavier is better and the older saws have no plastic and massive cast iron bases. I have a 1945 Unisaw and love it...
A great resource for finding and maintaining old "iron" is
Old Wood-Working Machines (OWWM) - Welcome
Pictures, user manuals, classified, and a killer forum on retoring and using American made woodworking machines. There are several guys that can help you out with anything you need to do with old WW machines...
just my 2 cents
chris