Zeev, I've been charting industrial metals and waiting on them to correct. Copper supply is rising, but the price just hangs up there. Same with Aluminum. Zinc is in short supply, and Nickel is up 7-fold since 2002 and shows no sign of correcting other than a slight drop to $8 in May.
Polyethelyne is still way up there, PVC is as well. These are base materials in many consumer and manufactured goods. I'm getting increases on lots of products we manufacture, and we're pushing them right down the line, albeit with a bit of a lag (6-months).
Inflation is real, and I don't see lots of these materials other than the plastics correcting in a big way until 2009 if the stock market bottomed this summer.