edit - new version with some imperfections + a little sharper and desaturated in the warmer areas...
Whipped it up in 10 minutes in photoshop for a 3D project I'm working on for school - if you'd like it for whatever reason, here ya go
Personally, will be using it on this semesters advanced texturing project, will post pics in a week when its done
If anyones wondering how I did it...
Started with a 512x512 canvas, White Foreground, Black Background - did a couple noise filters, then a motion blur filter and sharpened that a few times. That'll give you the basic "grain" look..I think I copied that into an alpha channel as well. Next I made a difference cloud layer with black background, brown foreground - I loaded a selction from the wood grain alpha layer and then copied from the different clouds layer and pasted that onto a new layer. From there i just kept merging layers down and doing small adjustments with levels and color balance and such...painted in the individual boards, then started painting in the individual details (knots, random imperfections, etc) with mostly a black brush then dodge/burn/desaturate tools. I'd make a vid but I do so much random stuff it really wouldnt make a difference - follow those steps and youll get something similiar... I think - dont really remember what I did.
Windows XP Pro x64 - ASUS P35 Platinum Mobo - nVidia GeForce 8800GTS 640MB GPU - Intel Core2 Duo E6750 @ 2.66GHz - 4GB DDR2 1066MHz RAM - Two Hanns-G HW194D Displays @ Duelview Configuration