Heres a quick tut for Cainmasters

heres a link to the render I used.
http://planetrenders.net/renders/displayimage.php?pos=-29601
1. Make a new document 450px wide by 150px high with a transparent BG.
2. Using the gradient too, fill the first layer (BG or Layer 1) with a gradient of your choice.
3. Make a new layer. Using a custom brush pack I added the building effect to layer 2 and set the opac to 50.
4. Make a new layer. Using another custom brush I added the arrows to layer 3 and set the opac to 80
5. Make a new layer. Using the rectangle select tool, select a skinny rectangle near the bottom on layer 4. Using the paintbucket tool fill this with white.
6. Set this layer to 'overlay' and duplicate it. This make the lightish bar that the text sits in.
7. Add your text with the text tool then in blending options add a dropshadow and stoke at 1px in black. you may want to lower the opac of the text.
8. Make a new layer. On this layer select all then stroke at 4px with white, then radial blur (zoom) at 20%
9. On this same layer select all and stroke at 2px with black. I then radial blurred (zoom) at 20% again.
10. Make a new layer. Go to image . apply image.
11. Make a new document, 500px high by 500px wide with a transparent BG.
12. Using the move tool drag the top layer (the applyed layer) from the first document into the new document.
13. you should now have your sig base in a new document. comprising of only one layer.
14. Open your render. Resize it to fit where you would like (ctrl - t)
15. Using the eraser tool, set to a soft brush on 45 opac erase around the bottom of the render to blend it in.
16. Duplicate this layer (your render) twice.
17. on the first layer duplication, to add the simplified effect I went to filter > artistic > water color. Then set this layer to overlay.
18. on the second layer dupe (the topmost layer), I went to filter> artistic > poster edges. Then set this layer to overlay.
19. You can now crop your image to size and save.
The PSD's are availible if you wish to see them, but I cant attach them here because it wont let me.