You can do one of a few things. The first, of course, is go to Radio Shack and buy all sorts of converters to get from connector A to connector Z, be it through A+B+R+Z, etc.
Or, you can make custom cable yourself. A subset of this option would be having someone else make the custom cables, such as
www.redco.com. They do great work with excellent parts for good prices, but I don't know how weird you can go in terms of what you want on each end of a cable.
To be honest, once you get to the point where you are using mics, mic pres and some sort of recording interface, you shouldn't need anything terribly out of the ordinary. I found that once I got to that stage, the big box of weird adapters and cables I'd amassed over the years became essentially useless.
At this point I really only use the following types of cables:
- 1/4" Male TRS (both ends) for connecting mic preamps to recording interfaces
- XLR male -> XLR female for microphones going into mic preamps
- 1/4" Male unbalanced instrument cable
- 1/8" stereo mini -> 2x male RCA to convert the signal from my digital piano to a standard input type
- firewire cable for interfaces to computers
Is there anything in particular that you are trying to accomplish? I have done just about everything, so feel free to ask!