Its been said on the forums before but not in this thread (and i've since become a happy convert...

I usually just use an evolution mini that i lock the rear wheel (inside the rear triangle) to an immobile object. This protects my rear wheel AND frame from getting stolen (at least as much as any ulock (except maybe that NYC u). You do not need to lock the frame to anything for it to be secure. I should use an extra u for my front wheel but if it goes, i'm out the 40 bucks i paid for it an i have a backup specifically for that situation. As for handlebars/seat, sucks if they get stolen, but really, i don't ge too concerned about it.