I'm replacing my z61t and I am trying to decide which to get? I am a student who does a lot of web design as well. Are the improvemetns for the t400 worth it? Are the sizes of these laptops about the same as the z61t?

Thanks

Stay with the Z61t. Especially if you have one of the newer models with the Core 2 Duo. It's the nicest widescreen laptop Lenovo ever released. The 14" wide T-series in comparison are thicker, heavier and uglier.