I'm considering an upgrade in my soundcard for my IBM laptop. I'd much much prefer PCMCIA due to the fact that it won't take up desk space. I will consider one just for the fact that I'd like a line-in. But, I was wondering if these soundcards are an improvement over stock soundcards? I've thus far been recommended echo audio indigo and e-mu 1616. I'm also considering the creative audigy 2 zs. let me know if anyone has experience!