Converting vinyl to digital is a very time consuming process. It will take roughly twice the playing time of the record. In addition to a good A/D converter you'll also need software for editing and click removal. It may be less trouble to actually go out a purchase CD versions of the music you want to convert.
If I haven't deterred you, then Apogee, Lynx, RME and M-Audio all make high quality soundcards.
If I haven't deterred you, then Apogee, Lynx, RME and M-Audio all make high quality soundcards.