Animated Text - as it's being typed

I checked the memories and whatnot, and there was a possible solution, but it's what I'm currently doing, which I'm really hoping is not the best way.

I'm using ImageReady and Photoshop. I have way more experience with Photoshop, so I think I've been basically not using any of IR's usefulness, and just using it only to animate and thus doing everything the hard way. Or at least I hope!

I want text to appear on the icon letter-by-letter. Kind of like it's being typed. The only way I know how is to actually individually paste each frame into IR as I painstakingly type out the words in Photoshop. Which is a pain and also means that I kind of have to start over if I decide that, oh, my font won't allow all the words to fit like I want, or anything like that.

>.<

Help? Anyone? Or, if there isn't an easier way, that's cool, but then I won't feel like I'm wasting my time when I could do it way simpler.