Tutorials....

Here's a good list of Photoshop tutorials from PSTTUTs...might be of use for your posters? Always keep an eye on PSD Tuts...

50 Great Photoshop Tutorials.

Photoshop Tutorials...

Anyone interested in learning some cool Photoshop effects should check out PSDTUTS.com. I've picked up loads of good techniques here that I've adapted for my own use. Check it out.