I was fooling around yesterday with the Random Forest Tree operator in Rapidminer because of this post on Revolution Analytics (great website BTW). I downloaded their data set, imported it into a repository, built a simple process, and sampled a % of the data. I did this all without the programming that R demands.
Oh, I even got a nice plot of tree.
Now, I'm not knocking R. I have great respect for the language and I dabble in it myself, but if I want fast results (*ahem*, rapid), I turn to Rapidminer ever time.