ebay? or maybe call dell and see about purchasing directly .. they do sell parts you know .. call the spare parts line ... sorry dont have number off hand tho

not alot of options from ebay... same parts, more price.  any other options?

Dell Spare Parts 1-800-449-3355 ext 7269937

Usually on all computers the fans dry out in the bearing and seize ( wont start unless spun by hand ), pull off the foil label in the centre of the fan and you will see a white plastic retainer circlip on the end of the shaft, use a needle to work it off ( it is usually split ) then pull out the shaft with the fan blade, you will feel the pull of the magnets, clean the bearing and shaft with Isopropynol untill it shines, add a few drops of 3-in one oil and reassemble, don't worry about replacing the foil. Test with a 9volt battery on the red and black leads, if it runs then re-install. Because these PC's run so hot you may have to do this annualy. I have been doing this for 30 years and it works. I am so glad that my Commodore64 has no fan.

Hope this helps.

Just to add, the RED lead is always the + terminal in electrical terms, the - is always black when referenced to DC current, with exceptions when they have been used once in a common circuit with more than one voltage, hence the Yellow and red leads from your PS. With exceptions;   :-)

i must be all thumbs, as i cracked the frame and need to replace it for certain now.  i'll call the spare parts line, thanks!