Proximity Based Screensaver

Many times I am working with 2 or 3 different computers at the same time. I get really tired of having the screensaver start when I am not on that computer for a few minutes (even if I am looking at information on that screen). So it would be nice to have something that would trigger the screensaver when I leave the area: either using custom RF or possibly bluetooth.

Some sites that I would like to look into:
http://lifehacker.com/265822/automate-proximity-and-location+based-computer-actions
http://metaquark.de/blog/categories/2-Home-Zone
http://lifehacker.com/software/networking/download-of-the-day-home-and-away-mac-238506.php
http://lifehacker.com/software/bluetooth/make-your-computer-react-when-you-leave-and-arrive-245380.php

http://www.google.com/search?hl=en&rls=en&q=lock+computer+proximity&aq=0&aqi=g1&aql=&oq=lock+computer+prox&gs_rfai=

http://www.newegg.com/Product/Product.aspx?Item=N82E16834999435

http://www.nrebate.com/en/usb-wireless-pc-proximity-security-lock-k-101.html?language=en&currency=USD
http://www.darkreading.com/insiderthreat/security/perimeter/showArticle.jhtml?articleID=217300522

http://btprox.sourceforge.net/

ASUS EEE PC Flash

Needed to update bios on my ASUS EEE PC 900A.

This is really easy:
1. Download ROM file from ASUS (Current one is 900A-ASUS-1102.zip)
2. Name it 900A.ROM in the root of a USB Drive
3. Plug in USB Drive and boot
4. Press ALT-F2 while checking system
5. System is updated

Thanks to:
http://forums.vr-zone.com/notebooks-netbooks/230543-reflashing-eee-pcs-bios.html

Ref:
http://support.asus.com/download/download.aspx