I wouldn't go by the material costs in the 2008 edition because just about everything was at the pinnacle of pricing.I'll second the RS Means book, you could even save a few bucks and look into 2009 or 2008 edition (With the economy the past few years editions have been pretty close)
Does anyone see a difference between an RS Means "Repair & Remodeling Cost Data Book" @ $144.95
"F.R. Walker Remodeling Reference Book" @ $20 / year online subscription? Is one that much better than the other is what I'm asking.