We just had a conversation at work today about CFLs. The primary gripe about them is that they take a couple of minute to come up to full brightness like any flourescent bulb. However, apparently the technology is evolving and there are now models that claim to instantly come to full brightness. I am sure they cost more. Another low energy alternative to CFL is LED. We have put several of these in our house recently and I really like them. They are more expensive, but the life should be even longer than CFL. With incandescents soon becoming extinct per federal law, we will have to find alternatives. I assume in several years, the technology will be well tweaked and it will be a non issue.