i see what you did there. Awesome. :)

Mod funny please.

Oh come on. A properly patched network with a good firewall will work just fine. I run a multi-site network spanning 3 continents with very high uptime and very few problems with viruses. Our biggest security problems are things like people losing USB storage devices (we started encrypting them though, so that's less of a worry).

The tricks are as follows:
1: Good firewalls with IPS/IDS services
2: Hosted anti-spam solution
3: GOOD antivirus that's updated regularly
4: No local admin privs for any users
5: All admins have 2 accounts - their domain admin account and their local account
6: Enforce strong passords
7: Chop off the hands of anyone caught writing down passwords
8: 2-factor authentication
9: Segregated network (VLANs etc)
10: Whole disk encryption
That's a reasonably secure network - sure, there are always ways in for someone that's REALLY determined, but Windows networks CAN be made reasonably secure with a fairly standard set of practices that translates across any OS.

Right, I get that - believe me, I'm very distrustful of the police and prosecution when it comes to evidence etc.... but hiding evidence is a very, very bad idea when your freedom is at stake.

Here, let me make it easy for you.

1: Wife is missing (and I didn't kill her)
2: I SOMEHOW find out where the body is without finding out who killer her. Because, you know, suddenly psychic powers are real - or some anonymous murderer thinks it's a nice thing to do.
3: Uhhhhh.... yeah, I can't get any farther than this.

Alternately:

1: I kill my wife and dispose of her body creatively.
2: Police start looking at me because, you know, motive and whatnot.
3: I get convicted in the face of overwhelming evidence.
Hmm... that didn't work either. Crud.

OK... to be honest, the problem I'm having is that I really can't conceive of a way he can be innocent at this point. I really can't.

If you really want to protect yourself from police misconduct, it's usually best to be very open with a LAWYER first... and getting media / blogs involved is a huge help, too.