I do not ordinarily endorse bassists I stumble across on Youtube, and ordinarily, as most of us know, there's a lot left on the table when it comes to a Geddy Lee / Rush cover (with a few notable and very consistent player exceptions).
That said, I have no idea who this guy is yet, nor have I checked out any of his other stuff, but for a seriously entertaining 5 minutes and 7 seconds, WATCH this and listen. Fair warning, he takes some generous liberties with some add-ons, but it WORKS. The recording quality and tone leaves a lot to be desired also, but if you can check it out without critiquing beyond what I've already pointed out, then hit Play!
I couldn't help but smile while I was watching him get into, and get off on, doing this, and it made me imagine Geddy on cocaine (in a good way): http://www.youtube.com/watch?v=E8TU8O8RpWM
EDIT- the first 51 seconds are slow and quiet; be patient or skip to :52!