I learned this really simple technique from my cousin, so many ThX (as always) to him. Open Photoshop, cause now it's your turn to learn it..
1. Create a new document and typ your text, make sure it's big and thick, there's no place here for thin fonts... Here I used Swiss924 BT. The color isn't important
2. Open the image you want to use, select what you need and copy it (Ctrl+C)
3. Go back to your new document where you typed your text and select your letters with the Magic Wand Tool
4. Now go to Edit > Paste Into (Shift+Ctrl+V), there you go, isn't it beautiful and simple?
5. Now to finish it, add a Dropshadow, the default settings should be enough to give it that wohw-effect..
Extra note: Nobody's stopping you to use more than one image, instead of selecting all your letters select only a few and paste your image in it, then move on to the next letter(s), these are my results:
