I don't know for sure but you might have difficulty fitting the graphics card in a mini tower. As your mobo will be mounted vertically then the card will need to go horizontally, I can't find a width but the dimensions I could find are:

Length 5.70 inches
Height 4.38 inches
Dual-width

link

Newegg lists them as 6.7" x 4.38"

AMD cards I've had work fine with most games.

One reviewer said
I could not get it to work properly until I upgraded my good power supply from 350w to a higher output P/S.
Great product and easy install.
About the GeForce card.