Using digital out and 5v at the same time?

I have a lilypad temperature sensor and an i2c heart rate module. The i2c requires 5v and the other requires temperature sensor 2.3-5.5v at 6uA. Can I power the i2c from the 5v pin on the analog side and the temperature sensor from one of the digital output pins?

oh i forgot to add that i'm using an arduino duemilanove.

Can I power the i2c from the 5v pin on the analog side and the temperature sensor from one of the digital output pins?

With such low current requirements for those temp sensors there is no reason you couldn't power them from a digital ouput pin that is set high.

Lefty