My main monster has two XFX Radeon HD 4870s with 1GB each in Crossfire.
My secondary machine has an nVidia GeForce 8500 GT 1GB
My HTPC has an ATi Radeon HD 3450 256MB AGP
My fileserver/archive machine has a VIA/S3 Unichrome using 32MB
My primary laptop has an ATi Radeon X1200 using 256MB
My secondary laptop has an ATi Mobility Radeon M6 using 16MB
And I have an old computer lying around with an nVidia TNT2 VANTA in it. LOL!
I won't be upgrading for a good long time.