Thinking about replacing the ceiling fan/light combos in the house with
recessed lighting. I'm guessing the BRs will get four 4" cans in place
of the fan/light combo. The combo has 4 bulbs coming out of it. Will
I need to run more wiring to the recessed light cans, or can I just
"split" the existing wiring four ways? If I can split them, how do I
do that?

Is it difficult enough where I'd have to hire an Electrician to run the
wires and then I do the installs?
I'm also hoping I don't need to add anything to the electric panel.

Last house, I hired this out and it cost about $90/light for the
installation of about sixteen 6" and twelve 4" cans, including new
light switches and a few dimmers. The price didn't include patch/paint
repair. Did I get ripped off?

Any help on the DIY install would be greratly appreciated too.

Thanks everyone!