It sounds like you're loyal to the company you're working for, which is great. However, you have no moral or ethical obligation to stay on for life. It's part time. If the people you work for are decent people, and I assume they are or you wouldn't be torn, they will be happy for you that you found something more rewarding.

Part time with no insurance vs. full time with insurance. Hmmm.

You need to be true first to yourself. Unless you feel locked in for life, it's O.K. to leave for a better position. It happens all the time, and will continue to happen until the government takeover of industry is complete and you don't have the choice any more.

Keep in mind that if you tell your present employer you've got something else lined up, there's always a possibility your present employer will find a way to match it and keep you happy there. Don't feel bad if you have two companies competing for you.

And especially, don't sell yourself short.

Your employer has to understand that you NEED insurance. You aren't changing jobs for a closer commute or a nice parking spot, you are changing jobs so that if you get sick you will be covered. Put it to them like that, and ask them to reconsider hiring you full time and giving you benefits. If they can't, or won't, walk away with a clean conscience (after two weeks notice of course).

This is called at will employment they wont think twice to fire you and leave you high and dry dont pass up what u feel is best for you ..based on u being the one using them they are in fact using you think about it .

If you are sure this new job is a better offer and you are given a guaranteed position, then give your current job 2 week's notice. That is the standard manner in which you leave a job. You're working to make money. You have a relationship with your employer based on your performance and your pay. Believe me, if they really wanted to replace you, there are so many ways they could do it, and they wouldn't hesitate to use one of them. Chances are, one day you will leave this job, or they will get rid of you. You might as well go while you have the upper hand.