Capture cards

Does anyone have one/would recommend one to me? I never knew that some were so cheap, I've seen prices ranging from like 5$ to 500$ lol... i want to get one to make gaming videos for youtube but im not sure if the cheap ones will be good enough for that kind of stuff... I don't know much about capture cards so can anyone help me out? Do the cheap ones work alright?

BTW I didn't know where to put this so I stuck it here in OffTopic

Cheap ones usually dont work well.

If you are going to capture a PS3/360 vid, make sure you get an HMDI, or component capture card. If possible make it a USB end instead of S video. My golden rule, read the customer reviews. They are usually key to seeing if its cheap or not.

I've seen the cheap ones work, but you usually require a whole bunch of extra wires and plugs etc to get decent quality

Ok so Koz or Lloyd, what would you recommend (I hate that word >.<) for Wii videos? I want to make LP's with good quality for once.