How fun! Your plants will be stars!
What kind of window is it? Old single pane? Newer double pane?
The newer windows let in way less plant-usable light, so you may want to pick things that do well in lower light.
I use a PAR light meter to see how many PPFDs are actually getting to the plant. You may need to invest in some really good lights right above that location.
And if you can't meet the light requirements, just rotate them out frequently so they don't suffer from being in a "cave" for very long.
Carolyn