Counter Offers

As long as you're happy where you are, I don't see it being a problem in staying. Unless you think that in the long run, your department may be cut in downsizing...

You have done what most people never do. You went out and made yourself more valuable because you had another Co. interested in you. Most people just except the change and keep on going. I'd have no problem staying and your better off now because you managed a raise to boot. If their matching that 401 make sure that you but in as much as they will match its free money.