Ah, too many to list.
On the traditional side, I've got a mass collection of sketching pencils of varying hardness/softness depending on what I'm sketching and a mess of medium quality sketch books, that often get dismissed for lined paper when I get bored in class so boo. Then I have a plethora of inking pens, which can be as expensive and amazing as copic, to as lowly and cheap as sharpies. Anything that I fancy in the moment, I suppose. I also have a very large collection of blending tools, and shades of both warm and cool grey alcohol markers. I think I like those the best. When it comes to my shades of grey, I tend to always buy on the expensive side. I sincerely hate it when I get those gross "in between" lines. \( #`⌂´)/
On the digital side, I've got my computer, of course! And my VisTablet Realm, naturally. Along with my tablet came a copy of Photoshop CS7 Elements, which is upwards of $300, so I couldn't waste it and more often that not use that for my art, despite it being best used for photo manipulation. I do also use GIMP as it's more accommodating for artists and better serves artistic purposes. I have never used Paint SAI, although I am very aware of how good it is as an illustration program. I just never got around to it.
I'm not quite adept with digital art yet, as I've only been doing it for less than a year. Needless to say I have a lot to learn. But I'm not in any hurry, so if one program doesn't fulfill my needs, I'll try out another. (〜 ̄▽ ̄)〜