in my current web project I am using Benton Sans as main font. It is all about a webapp dealing with numbers, which are displayed in matrices, whereby some should be highlighted and others greyed out. Since there can be a lot of those matrices, with a lot of numbers in them (~80.000) I am looking for a monospace font, which suits well to the Benton Sans, but is also easily readable (especially for numbers) and comes in at least a regular and a bold cut.
I like Prestige elite: http://www.myfonts.com/fonts/urw/prestige-elite/ but maybe that's too classical, but the serif style monospace would create a good contrast to the sans-serif benton.
Also cool: Atlas typewritter: https://commercialtype.com/typefaces/atlas/typewriter
Doesn't benton have tabular opentype numbers? This way you could do everything in Benton ans still keep those matrices.