I am looking for a TV Tuner card to use with my laptop so I can play my PS2 without buying a TV while I am away from home.  I have an ExpressCard/54 slot (the L-shaped one).  I am wondering if anyone knows of any TV Tuners on the market that have no delay between by RCA cables (or Coax if necessary) and my computer.
 
Any help anyone could give on this issue would be greatly appreciated.

Happaugue HVR-950 is USB2.0 and Low Lag as it does not have a built in Mpeg2 encoder.  Not sure if it is good enough for games.
 
Adaptec used to make something called the gamebridge. Just a usb2 video in w/o tv tuner.  Probably get one on ebay for $30.
 
http://cgi.ebay.com/Adaptec-Gamebr [...] dZViewItem

I was under the impression that USB 2.0 had a bandwidth restriction that would impose a delay since it has to convert the video format.

480Mbits/second should cover raw 24bit x 640col x 240line x 60field=220Mbit.  Real transfer is nowhere near this.

http://en.wikipedia.org/wiki/Y%27UV#Y.27UV411

YUV Colorspace and reduced sampling can get this down from 24bit to 6 I think, with a small loss of quality.
220/4=55Mbits/s or 7MB/s

I am not really as computer literate as you may believe.  In short:  What?