Just soak a cup of dried beans at least overnight in a couple of cups of water. Drain them and throw them into a pot with enough water to just more than cover them (an extra inch or so seems to be good). Bring everything to a boil uncovered, and then cut the heat back to simmer partially covered for about an hour or an hour and a half (when the skins split easily they have a good texture).
When you drain them save the liquid and use that when blending the hummus.
Scorch the skin off of the bell pepper over flame or under a broiler, and then roast the pepper:
To roast the pepper, put the cut pieces in a baking dish with a little oil and pop it into a 400°F (205°C) oven, until the pieces are tender and slightly browned, about 25 to 30 minutes.
One time I decided to make hummus for folks and alas! I forgot to soak beans the night before. My strange friend came to the rescue with the equivalent amount of home prepared white beans and it was a good substitute (slightly different flavor, but the spices here really dominate). I used the water from boiling the dried tomatoes as there was no fresh chickpea water on hand and it was delightful.
I've used cheap blenders, decent food processors, and a super-expensive blender to make this. It comes out about the same each time. Just blend everything together at a moderate speed until it is whatever you consider reasonable smooth.