I would like to upgrade my wife's video card on her computer. She currently has an ATI Radeon 9200 with 128 MB or memory on it running on a bone stock HP Pavillion A720n with a 250watt power supply.

My daughter is starting to dabble in PC gaming and her interests have finally exceeded the old PC I had kicking around for media conversion duties. It is an Athlon x2 240 with 10GB of ram and a Radeon ...