There's also the question of whether a CFL or LED bulb in the fixture in the studio will produce electrical noise that will affect mixing. Apparently, some do.
So I've ordered a stupid number of 40 watt vanity bulbs and 150 watt 3-way bulbs in the hope that they will last long enough for some reasonable replacements to come on the market. And I picked up a bunch of 60 watt bulbs for use in the studio. The other 60 watt bulbs in the basement can be replaced with CFLs.
And we'll see how it goes.