BTW: Using ASIO4All my X-Fi card happily works with a latency of at least 2ms! Thanks for the tips.
Nice! What spec is your system?
Would like to point out what I mean here :-) The same sound card that gave me 2ms in an OLD system could only reach 15ms in a new system. That blew my mind a bit at first until I realised it was bus latency- Crap motherboard.
My current spec is a half-decent laptop, but worried about buying PCMCIA cards as I dont trust it'll help my latency.
Current system: Intel core duo 1.83ghz, 1gb Ram, Hi-def Connexant Waikiki sound. Latency: 5-8ms.