For .99 seekdroid is it for me.
I did use lookout, but some of the features in the free version were not available (remote lock and wipe).
They are available on the .99 seekdroid.
You can also hide the app on the phone (must be rebooted once chosen).
I thought that was another nice feature.
You can also see the last 10 numbers dialed/received.
If it was ever stolen, that could be VERY helpful...