As a serious (though former) Common Lisper, I recommend you take a look at Clojure. Rich Hickey's presentations are a great starting point. I did, and I haven'

As a serious (though former) Common Lisper, I recommend you take a look at Clojure. Rich Hickey's presentations are a great starting point. I did, and I haven't looked back — things that I thought would be complete road-blockers turned out not to be a problem at all (no CLOS, no conditions&restarts, Lisp-1, empty list not the same as nil, JVM). And there were things that made life soooo much better (concurrency primitives, STM data structures, ClojureScript, and, yes, JVM (it's better than you think)). Even if you don't start using it, it's worth taking a look.