Bed Bugs

I need some advice on how to apply an intergrated pest control approach to a multi-story, multi-unit residential property that has bed bugs. We have bed bugs that have migrated from one unit to the next, apartment units that house people with chemical sensitivites, and varying levels of co-operative participation with regards to preventing the migration/infestation of the pests.

I really hope you are give me a little advice, i have bedbugs in my apartment. I consulted a least toxic company to come and get rid of them and he quoted $1,000-$10,000. Im a full time volunteer at Pestcide Action Network and my stipend is very very small. So i thought id try and bet them myself, i got a professional steamer and a bucket of dimeantous earth. Do you think this will do the trick?