I think QJ is long in need of a guide to the various graphics tutorials, well here they are, in no particular order.
Pixel Stretch (Blur Method) by Xodiac21
Deturb's Userbar tutorial
The Pen Tool by Psypher
Sig Tutorial by Deturb
Mimic Cortes' Style, by well, Cortes!
Fireworks tut- Pixel Stretch
Finally the most famous
N00B PHOTOSHOP TUTORIAL.(Contains 13 Tut's)
There we go, nice and concise, hope you like it all. Also, hope there's more tuts.... im making some so that'll be a few more