Lenovo used this year's CES to revamp its entire notebook line-up. We already looked at the all-new ThinkPad Edge, which is aimed at style and budget-conscious business users, blending elements from the IdeaPad netbooks with the enduring legacy of the ThinkPad line. The end result was a decent performing machine that boasts a superb design and affordable price tag, but undoubtedly some will be left wanting more.Today we have something a little more serious on the table for those seeking a more powerful mobile workstation. The ThinkPad T510 is part of Lenovo's classic T series which saw a complete refresh this January along with the popular W series laptops. Our T510 sample (model 4349-24U) came equipped with a dual core Arrandale chip also known as the Intel Core i7 620M that operates at 2.66GHz with 4MB of L3 cache.