Z-board

Has anyone had any experience with those dual purpose modular gamer keyboards known as the Z-board? I was considering getting one as a cheap interim along the way toward saving for some go-flight periferals. I just want to know how they are to use and set-up. And, while on the subject of alternative keyboards has anyone ever used the Belkin Nostromo N-52 Speedpad with FS? It looks like it could be a very useful periferal in a plane.