Linux-like top/netstat/etc. on Mac OS X?

Many netstat features can be replaced with a lsof command. I was often using

netstat -lnp | grep 1234

to find out who was listening on port 1234. With lsof (that is available on both systems), I can do:

lsof -i :1234

The top command on OSX is not bad either, it's just different. And I'm quite sure some of the metrics only make sense on Mac.

Note that lsof -Pi :1234 should make it a bit faster by not trying to resolve the service names (of the ports).

Oh cool, htop is in Homebrew! I guess it isn't a clone of Linux top but if you decide to use htop on Linux then I guess htop on OS X won't be too far off.