I have owned my own PSC, Single camera equipment from the first week I became freelance. In the early days it was Beta SP (which I still have) Now after going through Beta SX, I own a DSR500WSP (DVCam) which is the most widely used amongst my current clients.
I have used most formats on the market including, Digi Beta, and various forms of HD.
As standard I always carry, Wide and Standard lenses. Full lighting kit. Single camera sound (Gun mic, hand held, 2 Radio Mic’s) Tri-pod. Monitor. And all required cables and bits.