GGGRRRRRrrrrrr....

I'm mad. So 2 days ago I noticed the following cut on my bike lock (I've been riding to work this week): 

(Another view of the same cut).  Now initially I though it slightly comical since all they really made it through was the plastic coating. But then, night 2....
Day #2: A different cut and this one went all the way around. With a little more effort they could of made all the way through it.
So now I have 2 cuts, but after this 2nd one I had to un-lock both my bikes and bring them up stairs to my patio. Now I'm grateful that the lock worked and save my 2 bikes (the mtn. bike and beach cruiser were locked with the same lock) but bummed that I now have to buy  a new lock (they're not cheap) and that I now feel like I have to keep my bikes upstairs.  

Anyways, guess I should send a shot out to Onguard for keeping my bikes safe. Thanks! This lock does look like its a lot harder to cut through...unlike my Kryptonite...me and Paul Yoo cut through it in 5 min.! (okay, so maybe I didn't make much head way on my lock...but I do think I loosened it for him lol)

So, which one of these should I buy next?  Any favorites or suggestions out there?