Wendy,
Last time I was at Lowes the had great deals on Flourecent Plant grow lights from GE, all sorts of them... I think it was like 6 bucks no matter what size you got. I have never tried them, and wouldn't know the specs or performance on these compared to other brands, But I am going to be buying a big 2 bulb fixture and will definately be doing this. Seems like little effort to give your plants more of a chance of making it.
Also with your Ficus killing thing, I found that I was over watering before when I was killing them like crazy... You want to let the soil dry out before you water it each time. If you kept them in spots where they got a lot of water then that might have been your problem. I adjusted that and it has helped dramatically.