The Nitto Technomic is tall at 225mm for 25.4mm bars. The Nitto Dynamic is 150mm tall, but it is for 26mm bars. The Nitto NTC-150 stem is for 25.4 bars, but is not as tall as the Technomic, by 75mm. Also the Nitto Pearl is 150mm tall, and available for 25.4 or 26mm bars - also available in black - I picked one up from Ben's Cycle a couple of months ago.

Nitto stems are very nicely finished, the Pearl is probably the best finished of the bunch. Hard to go wrong.