Should I stay or should I go now?...

I have been stuck in a rut for 3 1/2 years now on whether being a stay at home mom is right for me. Don't get me wrong, I love being with my kids and I feel extremely fortunate to have seen every milestone they've accomplished thus far, yet, I still crave the career lifestyle. I have this guilt that will not go away no matter what I decide in life. I feel guilty for even thinking about going back to work because I will be leaving my children, but yet I feel guilty for not working because I'm not bringing home any money for our family. The biggest guilt of all is how selfish I feel for even considering going back to work because I know how hard my husband works so that I don't have to. My husband tells me I need to decide one way or the other and to just get over the guilt. He says no matter which way I decide to go, it will be the right decision. How does he know though? How do I know that if I decide to go back to work that I won't be miserable because I'll be missing my little ones? Some days this decision feels like it consumes my life. I know there has to be other stay at home moms out there that know exactly what I'm talking about. It would be nice to hear from you and maybe it will make my decision easier. In the mean time, I have started my own blogging site to keep me busy while my boys are napping. Sometimes I have so much on my mind that I believe this will be a good place for me to just vent about life, share ideas and also learn from all of you.