Protecting wallet with Access Protection rules

[Niloo92]

Hi,
I'm new to this community & bitcoins and so far I love it
Now, I started mining with a 270Mhash miner
The 270Mhash miner is running 24/7 on my network.
I'm pooling with slush's pool and a payout is comming soon ...
So i'm looking at my security to be sure,

On my server I have McAfee Enterprise 8.8 running to catch the bad things in general, but I'm concerned about a physical theft, or a undetected steal thing (eg; Trojan)

In my McAfee options I have a thing called : Security access protection rules, And I made a new rule that only allows the bitcoin.exe (located with path, so not a random bitcoin.exe can access it ...)has access to the wallet.dat file, I tried the rule by trying to edit, copy delete the wallet.dat and it seems to work. (I hope)
http://img840.imageshack.us/img840/6528/securityh.png
 

the only way a program can still steal my wallet.dat is by copying itself into the program files\bitcoin\ folder to imitate the bitcoin.exe,by deleting the original bitcoin.exe and placing itself in there ...
so here is when the 2nd protection comes in ... all access to the programfiles\bitcoin is denied, only executing is possible (windows startup) & read access
http://img804.imageshack.us/img804/6167/shield2.png

so, the question now is...
Is this safe for a wallet.dat theft  ?
- The Physical computer is not accessible, so you cant boot from a seperate OS to copy it
- I do trust McAfee's suite, it has a build in security so it can't be disabled on startup etc... so first you would need a trojan that fights the McAfee Suite and disables the whole thing & then copy the wallet.dat
- I think the security rules work, so a trojan had no access to the protected folders/files...
- Also, to disable the rules you need a password ... so even when an evil person has access to the computer, it cant disable the protection...

So the basic question is now, i'm I safe for a wallet.bat theft ?
spare me i'm a newb for a reason
Please comment !
Thank you !

Edit: the focus is the safety of my wallet.dat

[JoelKatz]

Take your wallet offline. There is no reason for it to be running. Your client doesn't need to do anything to receive a payment.

[Niloo92]

Oh, so the wallet can be offline for months ? and come online to receive all the payments ? (1 month old payments .. ? ) , i'm new so forgive me !

If Ill take it offline, is the setup a safe one ?

[X68N]

You dont need the Wallet/Client on the mining PC.

The Pool send it to your Adress, and the best is to earn your Bitcoins with an seperate PC wich is only online when recive or Send Bitcoin.

[Niloo92]

But would the security work ?
Thx.

[tschaboo]

But would the security work ?

It's much better than nothing. I guess that most simple trojans (those, that don't have mechanisms to work around the McAfee protection) would not be able to get your wallet.dat.

But if you are targeted by someone who really wants your coins this doesn't help too much because if an attacker gets remote access to your machine he might be able to instruct your running bitcoin program to just send all coins to his addresses. So you keep your wallet.dat but it's empty.