Kryptonite ALSO makes some very HEAVY DUTY floor anchor bolts that you can core directly into a concrete floor creating a super strong anchor to put your chain and lock through.
The other suggestion I would have for you is to look at installing a wifi camera. Foscam makes an excellent unit that there are tons of apps for (if you have an i-phone or equivalent).
These units are AMAZING. You get live video on your phone anywhere you have cell service. Plus you can set up a motion detector alarm that immediately emails you and takes 4 pictures of the motion. In other words, you'll be able to see anybody who goes near your bike within seconds.
The lock and wifi camera would deter or even better "catch" anybody who comes near your bike.
Security devices
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