Ohh, I never got used to the split keyboards. I got one Microsoft keyboard (I believe it was called the ComfortCurve?) that was something between a regular keyboard and a split keyboard but wasn't split. It was fairly comfortable and cheap.

I find it impossible to type a lot of things I want to, not only because some of my fingers are slower than others, but also because I usually do keyboard shortcuts with one hand, even if it's ctrl+alt+del. It's not easy to do on keyboards like those :(