Wifi-based power monitoring using arduino.

Hi there. I plan on doing a little DIY project for myself. Basically, current sensors will be used to take AC current readings from home electrical appliances and the data will be sent over wifi to a PC hosting a webserver. The PC would then consolidate the data and display the power consumption in real time. The problem lies in transferring the data over wifi. I planned to hook up the output of the current sensor to an arduino board's ADC and have arduino send the data over wifi. Any suggestion on what wifi module to use and any other cool suggestion on this project? I'm quite new to arduino. So pardon my ignorance.

Thanks in advance for any advice and suggestion you can give me. Cheers..

Seen openenergymonitor.org ?