While plenty of companies will spend CES showing off their first Ultrabooks, Lenovo is already going back for seconds. The outfit just announced the ThinkPad T430u, a more business-focused follow-up to the IdeaPad U300s we reviewed back in November. More than anything, though, what has us intrigued is that it packs optional NVIDIA graphics, making this the first so-called Ultrabook we've seen with a dedicated GPU
