Building Computers?

I recently came into a several computers and 6 of them are running and the others are towers that have been piced out i REALLY have been wanting to get into this as a hobby and want to rebuild and or upgrade them as is suitable for thier future porposes but am a novice at best. and advice or sites or companies or e-books that might help or just advice WOULD BE FANTASTIC THANKS IN ADVANCE!!

Building Computers?antivirus scan

I have been assembling PCs since 1990 and have found that it is a great way to learn about computer hardware and operating systems but is not an economically viable occupation.

The last time I assembled a PC for a "friend", my friend would call at all hours asking why it was not working properly. The last call was I received belligerent. I bought a new Dell desktop of equal value and swapped it for the PC I had assembled. I told them that next time it breaks you should call Dell, not me.

Now my PC 鈥減rojects鈥?are just for learning. I play with Home Theater, In-Car, and Linux Servers such as FreeNAS, home made wireless routers, and VoIP, ect鈥?br>

Home Theater PC (HTPC): http://www.mythtv.org/

In-Car PC: http://www.mp3car.com/

FreeNAS: www.freenas.org

Linux: http://www.aboutdebian.com/install31.htm

Linux: http://www.ubuntu.com/

VoIP: http://www.asterisk.org/