Ditto, the Protec system is really nice. If you can easily get hold of Abloy locks, they're really nice. Check out
my locks thread for some breakdowns.
ASSA Rukos are really lovely locks, I currently only own one (using the D12 keyway) but I have some others on the way - from what I've heard they are fairly hard to pick and though I haven't yet received mine, the grade 4 ones look solid as a rock so if Rukos are easier to find I highly recommend those too.
Oh, and I know what you mean about removing the shackle screw - the grub screw in Abloys actually just keeps the bottom plate in, which protects the core - they don't affect the shackle at all
. Oh and they are -all- protected by the shackle closing (the access hole is in the side of the body but the screw is the other side of the shackle hole, so when slid down into the locked position the shackle will completely cover the access hole). The only exception to this rule AFAIK is the cheapie Abloy 321, which has a hammered-in pin protecting the access hole instead.
Nice keys, MacGnG!