Thanks for all the suggestions. I think I'll buy the series 4 U-lock. I have also been looking at Kryptonite's chain locks to lock up my front wheel/frame. The front wheel on the 925 is not quick release, but I would rather not buy one because it was stolen. After seeing my crappy bike get ripped off, I can only imagine the lengths thieves might go to take my nice bike.

I would rather spend $100 on a secure setup now, then $500 on a new bike tomorrow.