Which ver. of Leopard 10.5.X retail will install on iMac G5 20" iSight?

[BigBIg5]

I want to upgrade a iMac G5 20" iSight to Mac OS X Leopard, but I don't know if all the retail versions will work? Also, where is the best place to find cheap Mac OS X retail DVDs?

 

[redheeler]

Any of the retail versions of Leopard will work on a G5. You can find them for sale on eBay.

Alternatively, if you have a blank dual-layer DVD, you can download an image here and burn it yourself.