Is there something similar to WinKey+R (Run) in OS X

I have been using Windows for years and I am totally addicted to the WinKey+R key combination which brings up the "Run" dialog. Some common tasks would be:

#launch a command prompt
WinKey+R cmd

#launch MS Word
WinKey+R winword

#launch a console RDP session with a custom resolution
WinKey+R mstsc /v:some_host /w:1100 /h:777 /console

#launch IE and open http://some_url/
WinKey+R iexplorer http://some_url/

I've noticed command+spacebar get me spotlight and I can type something like textedit and that works but I can't type "textedit ~/mydoc.rtf" which is what I really want.

Can I get the functionality I'm looking for?

Thanks in advance.