IMHO, you are always better to spend your $$ on higher quality components, so your focus should be on what components you get for the money. I am not sure about the built in "elastomer" thingy on the Tarmac Expert Triple, seems a little ghetto to me, but I have not ridden it, so can't really comment.
That said, Ultegra is the way to go (not that 105 is bad, but Ultegra is a notch up on the bicycle food chain). I don't think a triple is really necessary, esp with a 10 speed freehub, but you should buy whatever meets your needs and riding style best. Good luck.