Beepster
BobF
Kenny has made a huge amount (if not all) of his Reaper vids gratis. I wish he was a SONAR user 
Reaper does so many things amazingly well (and it is ultra snappy/stable) but it is a pain in the balls to use because it seems you just have to CONSTANTLY be futzing with elaborate, complex and buried settings to make those things happen. Also the comping scheme kind of blows compared to the current Sonar IMO... which is why I was looking at that vid in the first place. IDK... just doesn't work for me as a froo froo "artiste". For intense rawdog production taks though it's a great second tool which is why I've started dipping my wick into Cockos-land.
I toss the files right back into Sonar as soon as I can.
For those times you do use it, ReaMenus and SWS extensions help Reaper a lot. The LCS themes make it much easier on the eyes too, IMO.
As far as COMPing goes, I get far fewer unexpected results with Reaper COMPing compared to SONAR.