I say sell your current bike and apply that money towards a new or used caad10/105 or ultegra.
This has nothing to do with the much love this forum gets with Caad10. This is strictly based on the facts that it is a fantastic frame for the money. Light, stiff and looks good. It will last you a long time without going out of date before you purchase your next bike.
You can check out "All of craigs" (which searches all cities of craigslist for item you desire and then pay for shipping), Ebay, forum classifieds. I searched for 3 or 4 minutes and found 7 caad10's that were under $1400. Just not sure what your size is.