So my SB-910 should arrive tomorrow or day afterwards. Doing some prep work I find that the D90 does cannot wirelessly trip the flash- from what I intend to use it for, I don't want to triggering it with the built-in, so I'm looking into wireless controller.

I can see myself getting some more flashes in the next year, so I want something that will grow with me.

any advise on these controllers would be appreciated - what do you use or recommend?