High fiber, low calorie foods?

I'm trying to get more fiber into my diet. So far, I've found cereals give me the best bang for the calories. Anyone know of anything else that's comparable and/or better? I'd like some variation in my diet.

All Bran Buds (30g):
Fiber: 12.9 g
Calories: 75

Fiber/Calories= 0.1720

KASHI Good Friends by Kellogg (30g)
Fiber: 8
Calories: 93
Fiber/Calories= 0.086

KASHI GoLEAN by Kellogg (40g)
Calories: 126.0
Fiber: 10.0
Fiber/Calories: 0.0794

Broccoli (100g)
Calories: 35
Fiber: 3.3
Fiber/Caloires: .0943

Spinach (100g)
Calories: 23
Fiber: 2.4g
Fiber/Calories: 0.1043

My two best foods w/ref to fiber are prunes and chickpeas. Always effective, and taste terrific if you do it right. Like I have this recipe for chickpeas that I call India-style chili, with almost no fat. I like to eat pitted prunes straight out of the bag. Also no fat. Both have lots of nutrients too.

Exactly what I was looking for! Anyone know a source that sells this cheap? It was $20 at safeway for 450g but I think I'm going to go through a lot of this...