After working extensively an internet startup in a marketing positions, I've decided to wade into the entrepreneurship pool with a startup of my own.

The only problem: I don't have any particular technical skills to speak of. Although I can find a technical co-founder, I'd rather not be the stereotypical 'business guy' drumming his fingers on the desk and asking 'how much longer?' as my technical co-founder codes away. I would like to understand code and what's happening in the backend, even if I don't end up being anything more than a 'passable' programmer.

With this in mind, which language should I try to learn first?

For the record, I'm quite proficient with HTML, CSS, and a bit of JavaScript. I have some familiarity with PHP because I've toyed around with WordPress a lot, but my knowledge is limited at best.

My math skills are quite strong. I took some advanced calculus courses in college since I've always enjoyed the subject.

While my goals are to learn web development, I wouldn't mind learning some hardcore object oriented programming skills in C or Java as well.