Hello xxnamxx,
How much are you looking to spend (in USD)? Is there a reason you specifically want composite out and not S-Video out? What games are you playing or trying to play? Is there a particular website you go to for computer parts? I'm not really aware of any good ones in the UK.
You're still probably better off getting a card with S-Video out, and if you absolutely need it to be composite, you can get a little S-Video to RCA adapter for a few bucks. Specifically looking for composite out will greatly limit your choice on video cards as most newer cards will have S-Video rather than composite. S-Video being the higher resolution and better choice for clarity.
Answer some of those questions and I will help you pick a good card
