Hello charged up people!

I would like to add recessed lighting inside my shower enclosure.

The ceiling is about 10' high and the rain shower head is flush at ceiling level. The enclosure is about 39in x 45in.

What is required in order to enjoy more than 1 shower and not fry?

Yes I would dedicate a GFCI for the shower only... but then again... is GFCI the panacea to all electrical electrocusion prevention? How about LED lighting?

Many thanks in advance!

Well, GFCI protection is a panacea, in practice. I suppose it isn't perfect, but I've never heard of anyone killed on a GFCI circuit. Possibly the GFCI breaker could fail, but I believe they are designed to fail protectively -- if they fail, the power goes off. So I would feel confident in a shower with a GFCI-protected light, just like the lights in most swimming pools.

LED lights are fine, too. But unless you are using battery-operated or low-voltage LEDs, I don't see that they are much different than a regular 120V lighting circuit.

Most shower lighting is recessed into the ceiling, and protected behind glass covers, generally watertight ones. Also, even if the cover was left off and no bulb in the socket, so that water would splash directly onto a the live circuit, that would probably only blow the breaker and leave you in the dark. You are at danger only if your body forms part of the electrical circuit. Like if you hold onto the showerhead in one hand and a live part of the light fixture at the same time.

I think any regular watertight light fixture on a GFCI circuit will be fine. Investing in a hand-bar to prevent slipping getting into & out of the shower might do more to protect your safety -- lots more people are hurt by that than by electrical shocks in a bathroom.