What is the simplest way to draw power (50+ amps) from a house?

I already have a distributor (http://www.furmansound.com/products/pro/power_dstrbtn/powerdist1.php), but need to know how to hook it up. I do not have the funds to hire an electrician to work alongside my lighting and audio techs, and I'm at a point where I'm thinking of just taking career electrician classes just to learn how to be able to draw power from different sources to get to my tech booth and staging equipment if I can't get an answer on how this would be done. At venues they usually have electricians to give me power, but some events (IE weddings) obviously don't since they're done in homes and I've been having to run 15amp cables all over the house and it's very unprofessional. I'd just like to figure out how to get one main line from the power source to my distro box and I can handle all the electrical loads and balancing from there.