I was about to post the same thing -
Spare Parts is telling me that "running" is using 100% battery, and my phone is barely lasting a day (down from 2 or 3 days!), but even killing everything in task killer doesnt stop the 100%, so i've installed something that's killing me!
Are there any apps (available on free market or SlideMe, dont have access to paid apps) that will show me what apps/processes are using what battery juice??