So I got a PS3 the other day and I've come face to face with the situation that my all-in-one desktop has no hdmi input. I've looked up online for HDMI/USB adapters and I really don't know which is the cheapest/best one to get. I read up on one that was around $50 which sounded ridiculous to me and judging by the reviews it seemed to lag for people a lot, but only that one. I really don't know which one to buy. Could someone help me pick out the correct one?

Remember, I'm just wanting to use my computer/monitor as a "tv" to view my ps3 games on. That's all I've got for now.