Juno Download has made a compilation of 10 best audio interfaces for home studio. It will help you out taking final decision if you are planning to buy a new audio card.
Nowadays there are plenty of high quality interfaces which are targeted to home and pro users, for instance: MOTU 828mk3 Hybrid, RME Fireface or Focusrite Saffire PRO 14 just for name a few. Take a look to the list here:
I personally own three soundcards: an old M-Audio Audiophile 2496, a Focusrite Saffire LE for studio and a TC Electronics Konnekt 6 for my live performances. Except the M-Audio one which I don’t use anymore, I am very happy with both soundcards, quite cheap, very stable and pretty low latency.