If that is a south facing window it may be to strong for the plants you have on the sill now. Most of my plants do great in a east facing window. Hope that helps a little.
Christine

Thanks, Christine. My window faces west. There's a 25 story building that blocks out some of the sun, however, it remains really bright. I've decided to monitor for any signs of too much sun and move them to another location close to the window if they do start to "complain" a bit =D