How can I quit smoking? (Ex-smokers' advice please)?

I have problems with other habits as well.. I found that haloperidol helped me keep from biting my fingernails for it was actually a kind of "tic" due to tourettes.. A lot of people I know say that it's easy to quit smoking - for I don't know if I can.. It's probably one of the most enjoying things I can do.. It really is a crutch for me... I found that "Chantix" works incredibly well, - I quit for 2 months without looking back - however finding out my husband never quit like he said he did (he was hiding it from me) - I started again out of spite.. which was really dumb.. I started on Chantix again and it made me suicidal.. Which I found out that is a side-effect from Chantix.. I am sick of the headaches and right now I am starting my yearly bronchitis again.. I can't cough up the gunk in my lungs and I really want to quit.. I don't know what else to do.. Cold turkey isn't an option for me because it is like giving up...air.. It's impossible.. Plus my husband smokes so that makes it doubly difficult to quit.. I am willing to take medications as long as they don't have nicotine in them, because that doesn't get me away from nicotine.. It keeps the addiction alive.. Is there any improvements on Chantix yet? - Some that don't cause depression and/or suicidal tendencies?.. I would like some other advice than just "just throw them away and quit - it's easy" - because it is anything but easy for me.. I have tried that.. (I've been smoking since I was 18 years old.. and I'll be 33 in July.. So it has been almost 15 years now.. goodness I'm getting old)