I am trying to upgrade my old pc as HTPC. Is PNY PCFX5700APB Geforce FX5700 128MB DDR VIVO AGP 4X/8X Video Card video card good? I am on limited budget and don't want to spend fortune on the old pc (1.3 Ghz with 384 RD-ram) I was also thinking of chaintech 710 sound card. Are these good choices for some one who is on budget???