Can I get the classic "run command" window

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http://askubuntu.com – I love unity but I hate it when alt+f2 brings up the dash. Is it possible to just remap alt+f2 so that the thing looks like exactly the old alt+f2 I know what I want is like going back in time but I really loved that fast command runner in old gnome. I can bring up terminal using ctrl+alt+T and run anything I want but it sometimes is a overkill to bring up something like that for small things. And I used to like the fact that older window was fast, had autofill and would disappear after launching the command. Or is there a utilty that looks somewhat like that and can be installed and mapped (HowTos)