Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
anandtech just put up a HTPC gpu roundup for you, including the ati 6450, 6570 and nvidia 430 and 520 cards http://www.anandtech.com/show/4380/discrete-htpc-gpus-shootout/1
geforce gt430 is a good choice for a htpc nvidia's control panel is a bit better than ati's, i always forget where their overscan settings are. check amazon there is an asus card $60 plus $20 rebate if you want to bother