Spoke Size / Spoke Length Database - What size spokes do I need?

IRD Niobium Road (summer) and Ambrosio Excellight (winter) FTW!

I've built 4 wheels recently, involving 2 different types of rim, 3 different types of hub, and 3 different types of crossing. They've all been 290mm. Mind-blowing.

Say what you will, but you can't say my life's boring.

I was in the process of doing some research for my 29er wheels.

Hope Pro II trials/SS hubs, laced 32 3X to Velocity blunt rims. DT swiss spoke calc gives 290 (disc brake side) and 291. I was going to round them all down to......
.......... ***290. ***
[B][/B]
I'm going for a lie down.