Susan, I completely feel your pain about the Aer Lingus thing. I was in the same situation, but I had bought my ticket before I heard about what a hassle it is, then couldn't afford to give up the $450 ticket AND buy a $1000 one as well. As springhaze says, it's not the end of the world and it's not illegal, but if you do decide to go via Dublin, be sure that you document your presence in the UK thouroughly and from the minute you arrive, so there's no question about when you entered. Register with a GP, get a library card, save all your mail, get bills in your name, get a provisional driving license, anything you can do. I've done all this, and frankly, I'm still really worried about eventual ILR/probationary citizenship. I hope there won't be trouble, but who can say? If you haven't bought your tickets yet and can afford the more expensive ones, it's probably worth it in the long run, for your peace of mind, to avoid Dublin.