Don't look at it as "giving up" but merely setting yourself free from the slavery! (Allen Carr "easyway", fab book and definately worth the read) I have been off ciggies for 10 weeks, with the odd microtab for the times I feel I may cave in. Its been easier than I thought but still bloody difficult at times, but these times do get easier, and further between.
My advice would be to prepare yourself properly. before you quit and be prepared for the pitfalls. Money is a good incentive to stop, but remember also that you now have a dear little man to look after, who needs his mum healthy and calm. Believe me you feel so much calmer, once the nicotine monster stops banging on at you for a fix! lol

Good luck
Keep us posted.