Are you looking for on the order of  like this Fran??  Maybe a little rustier then you need but was the only texture I had handy this morning.

First link is just a plain wall.  Second one is the same wall with a little bump added with PS bevel/texture.

http://ravynsworld.com/rustypanels.jpg

http://ravynsworld.com/rustypanels2.jpg

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Life may not be the party we hoped for but while we're here we should dance.