Also, check with your local utility for rebates. I get 50% rebate on the $10 Utilitech 7.5 watt LEDs that I bought at Lowes. They are 3000 kelvin, which I find to be pleasant.
Without the rebate, I would stick with CFLs other than lights that are very hard to get to or that are on more than 1500 hours per year. Going from incandescent to LED is about a 75% reduction, cfl to led is less than 20% so it would take a while to get even. For people with high ceilings with lights, the 25,000 hour bulb life makes the case for LEDs.
It is great to see the advancement in these technologies- they use less electricity, create less heat, and last longer- all pluses.
I own the next hot stock- VTSAX