Let's talk about your art supplies...
As far as mechanical pencils go, I swear by Sanford (I just wish they would sell replacements for those little erasers that go in the butt of the pencil- I hate having to steal them from the pencils at the art store). Also, I have a set of Prismacolor colored pencils by Sanford that's amazing (120 colors). Unlike many, many other brands of colored pencils I've tried in the past, they don't break when you sharpen them. I also have a set of Sanford watercolor pencils as well. They make some fine double-ended art markers too. http://www.sanford.com/
However, as far as markers go, Copic (a Japanese art company) makes some great stuff also. Of special note are their multiliner markers- ultra-fine point markers that are perfect for inking pencils. The lines don't spread at all when you're drawing with them- they stay perfectly straight and smooth. I can't go on enough about how much I love these markers. I hate inking and couldn't imangine using a rapidiograph or a pen and inkwell. That must be a nightmare. The multiliners make inking a breeze. Check out Copic's website at http://www.copicmarker.com/. They have an interesting airbrush on their site that works on cans of compressed air as opposed to an expensive and cumbersome compressor (though they sell those as well) that I'm interesting in checking out. It even uses a markers for the ink source. Very cool.
As far as paints go, I don't care. I'm not experienced enough with them to have a preferance.
For paper, I don't have a favorite brand, but I usually like the stock to be a tad on the thick side (90 lb.), with a slightly rough texture to it- but not TOO rough. I usually draw on 8 1/2 x 11 paper, sometimes 11 x 17.
Lead for my pencils? I favor .05 lead, and I usually use HB or sometimes 2H to avoid smearing. I've tried .03 lead pencils, but I find that the lead constantly breaks and the pencils constantly jam no matter what brand I use. It's a pain in the ass and not worth using.
I like white india ink best for correction (it blends well).
I have a drafting brush for getting rid of those pesky eraser shavings on my paper after excessive erasing.
I have some stencils for things like circles and ovals and letters.
I like Sanford Tuff Stuff erasers.
Loew-Cornell makes some nice presion brushes with sharp points for detail work.
I have some different size roller rulers, but I don't use them much. I also have the usual assortment of normal rulers, t-squares, triangles, etc.
I use workable fixative on my pencil drawings to protect them from smearing.
Blow Pens- yes, it's a kid's art toy- a marker that you can blow into, making the ink fan out the other end and onto the paper. But I find that they can create AWESOME splatter and other special effects. They're really cool. :)
How about you?