Lost the keyboard backlight, use of my USB ports and camera shows as disconnected. How do I fix this?

Please help.  I'm still a MAC rookie.
I unplugged my Pedometer from one of the USB ports on my Macbook Pro.  Ever since then, I lost the backlight to my keyboard. I did some troubleshooting on these discussion boards and found a few with similar issues, but most of the discussions were old and the solutions were out of date.  As one of them advised, I checked to see if my Isight Camera was still connected and it wasn't. I also tried plugging a few different things into both USB ports and neither of them worked either. So whatever caused this, it's affecting all 3 of these things. I don't know if my Pedometer is old/bad and it "short-circuited" the USB port and everything else along with it when I unplugged it or if something coincidentally went bad at the same time that I removed it. 
I read some old answers from the discussion boards where they suggested a Command (R) system recovery reboot.  But I also read that that really doesn't help on newer operating systems. I am on OS X.  Here is my Hardware Overview:
Model Name:          MacBook Pro
  Model Identifier:          MacBookPro5,4
  Processor Name:          Intel Core 2 Duo
  Processor Speed:          2.53 GHz
  Number Of Processors:          1
  Total Number Of Cores:          2
  L2 Cache:          3 MB
  Memory:          4 GB
  Bus Speed:          1.07 GHz
I did recently purchase a backup drive and I THINK I previously backed everything up properly. But, I can't even plug that into the USB port now to see if I
can somehow use that to fix this since the ports aren't working. I have no idea what to do. Does anyone have any suggestions?  Please!? 
Thanks in advance!

Reset PRAM.  http://support.apple.com/kb/PH4405
Reset SMC.     http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".

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