To answer the initial question, I can hold it down with a simple kit.
It doesnt take much when you know what you're doing.
I do it to keep myu creative juices flowing. Its harder to create with less.
This is what I love about Mark Simmons (from Houston, toured with George Duke and Al Jarreau). He pulls the sounds out of ALL of his drum equipment. We forget that wood (sticks) makes a particular sound when striking metal (rims, stands, etc.). Not to mention that there are about 10 different sounds you can get from your snare just by changing WHERE on the snare you're hitting, and by changing the ANGLE at which you're hitting it. Nat Townsley played around a bit with this concept on that MD vid, at the beginning of his last song.
The least amount of equipment I've ever used, though is a lunch kit, the base of my palm (kick), and my knuckles (snare/hi-hat). I used to rock the kids on the bus all the way home. And I'm not lying... They used to ask me to hit that beat on my "Mr. T and the A-Team" lunch box. Straight groovin'!

One time at my church, we were rehearsing and we were messing around with an old hip hop beat and people were wondering where the vinyl "scratch" sound was coming from. My snare head was fresh (coated) and grazing the tip of the stick across the head gave a light scratch sound. It was crazy.