Testing Updates

Hi, We have now 1150 wsus client on 37 computer group...

I create a wsus group and i have 1 person of each important department in this group...

When 1 approve update it's always for my wsus group and i copy the list of update and paste to my mailing list wsuslist that told them what update i do to wsus group and they have 2 or 3 days for testing them...

After 2 - 3 days if i did'n receive mail from wsus group... i apply udpates for all computer...

Presently, I'm looking for a tools that told me  by mail when new updates are avalaible on wsus and when new computer appear on computer group "unassigned computer"

I have a group of 118 desktops and laptops all Windows XP SP2. In addition I am running two Windows 2003 Servers on my segment of a much larger network. I test all up dates on the easiest to replace computers. Usually those with basic programs (Operating System and Office). I then have the rest of the computers broken into two groups Critcal and "kinda" Critcal computers. If the update works ok with the 1st group for a week I then approve the second or kinda Critical computers. After a week running new updates on the "kinda" Critical group I approve the last group or Critical computers. So after 2 weeks all updates are approved for install. All users are local admins and all updates are forced. I am the tester for a much larger portion of our network. jt