I started out with self portraits because I never had models. I just wanted to play around with photography and light and poses.
Anyways. This is how i did it, and most of you will be very surprised.
I had the 400D and a remote control for it. The RC-1 which you can buy on amazon for about 15-20$. I would put the camera on self-timer. The remote control would allow me to have the camera focus on my face. Nothing complicated. I'd set my camera on the window sill in my room and i'd sit on the floor playing model. I'd obviously test the light before . I'd put a stuffed animal to where i'd be sitting and see how the light hits and switch my aperture and shutter speed. SOOOO That's about it. If you have a tripod it's probably easier, I still dont have one till today. Now that I have the 5D I haven't had a chance to buy a remote control for it, and I probably wont. Just doing photography now and enjoying it much more.
OHHHH and I would sometimes hold the reflector under to give more light and shine.
The window I used for 95% of my self portraits :
Ok also the photos where I had the white background, i'd put my camera on my book shelf and pose standing on my bed against the white wall, nothing complicated.
In some photo's i'd use the 430EX speed light, but I sold that :( soooo maybe like 3-4 f my self-portraits were taken with that.
Hope that helped you guys, if you have anymore questions feel free to ask!