[hussong]

I was surprised how light the T-Series models have become, hadn't looked at them in years and only remembered the heavy clunky units that made me go for the X-Series.

The current model T460s is also interesting, quite a bit more performance than its predecessor, albeit in a different price bracket.

I'm mostly going for the 450 because there's tons of decent refurb available and I'm frugal that way ;-)

[lozf]

Just be sure that you're comfortable with the trackpoint on the 450... They swapped the buttons for a touch sensitive area at the top of the trackpad. The physical buttons have made a welcome return on the T460 range, but if that doesn't bother you, enjoy a great machine.

[chx]

You need to understand the R series became the T4x0 and the T4x0s is the real continuation of the T series.