fastbreaker those two topics will get you started, the photoshop one is better. If you already know a little in photoshop it shouldnt be to hard for you to get a good sig made.
it is'nt that hard to make a good. sig. you just have to practice. make a few and you should have a good general idea of how it works by just expirementing...thats how i made my sig. lol .
i actually prefer GIMP to photoshop, but its good to read the guides. i used S7R1D3R's sig. guide mostly, but i did also use DAGGER's one.
good luck,
starship troopers